Alien Non-Interference Clause

"As the right of each sentient species to live in accordance with its normal cultural evolution is considered sacred, no Starfleet personnel may interfere with the healthy development of alien life and culture. Such interference includes the introduction of superior knowledge, strength, or technology to a world whose society is incapable of handling such advantages wisely."
Starfleet General Order 1 (also known as the Prime Directive), Star Trek

Even without ever having met a real culture from outer space, mankind has experienced firsthand the sort of disaster that can come from First Contact between a technologically-advanced society and a technologically-primitive and/or culturally-different one. Case in point: much of the European age of exploration and colonization included a great deal of war, exploitation, cultural assimilation (both forced and not) and even genocide across Asia, Africa, Australia and the Americas, including cultures that, according to modern research, may have been more advanced than we once believed.

It is for this reason and others that Science Fiction writers came up with the concept of the Alien Non-Interference Clause: in the future, it is believed, people will have learned from the mistakes of the past and take steps from preventing the same mistakes from recurring as humans explore space.

Of course, such rules are ultimately an Obstructive Code of Conduct that creates as many problems as it solves. Crash landing on an inhabited world when this rule is in force brings obvious difficulties. Trying to study an alien culture without being discovered is a popular scenario. And where do you draw the line? At exactly what a point where a species is officially "mature" enough to let them in on the secrets of the universe? Does non-interference mean you're morally obliged to let a species suffer or die because it is their "natural development"? And what will happen when the "protectees" do develop advanced technology and discover that alien races have been watching them for generations… and consider themselves pretty darn righteous for their policy of non-assistance? And what should be done if the "protectees" are looking for extraterrestrial intelligence? There's also the little matter of how one defines a culture's "normal evolution" or "healthy development"; in addition to the aforementioned "letting them all die" aspect, if a society seems happy but social development has "stagnated", does that justify stepping in to nudge them in the right direction, or should you assume that they might possibly be able to do so in their own time?

A common twist on the trope is to have such a law in effect, and then come across an alien race that is eager to gain tech and knowledge from the humans. What happens then? Can you get away with telling the aliens You Are Not Ready? Where does the rule stop being about "preserving alien cultures" and start being about "keeping the humans (or The Federation) as the dominant power"? One ironic inversion is to have a second, more advanced set of aliens show up and refuse to help because they have this exact same clause, essentially turning the tables and putting the protagonist on the receiving end of this "benign neglect".

This also appear as the reason that aliens aware of our existence, or even visiting our planet in secret have not announced their presence to us. Usually, the condition to join interstellar society is the independent development of starships or faster-than-light travel, or at least to starting to colonise other planets in the Solar System.

Compare Helping Would Be Killstealing. Contrast Technology Uplift, when the aliens don't have this clause. See also Low Culture, High Tech, which is what the violation of this rule can sometimes lead to. Protagonists who tend to say Screw the Rules, I'm Doing What's Right! usually treat this as a Frequently-Broken Unbreakable Vow.


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    Anime & Manga 
  • Dragon Ball Super: As explained by Gowasu, the Supreme Kai of Universe 10, the Kais are forbidden to interfere in the affairs of mortals; their job is to create life, watch over the mortals, and give them guidance. Unfortunately, Gowasu's apprentice, Zamasu, is firmly convinced that Humans Are Bastards and openly criticizes this policy, believing that The Gods Must Be Lazy.
  • Please Teacher! is a rare example of the protagonist being severely punished for violating a noninterference clause. Mizuho is drummed out of the Observer Corps and her presence is wiped from the memories of all of the earthlings she came into contact with including her husband Kei.
  • Waiting in the Summer: The Federation prohibits contact with primitive, "Class F" planets. The twist? The primitive planet is Earth.
  • The Galaxy Police in Tenchi Muyo! tend to treat Earth as this. One story in the manga had an higher up order Mihoshi to use a special net to cloak a space-faring Biker Gang from being seen. However, the Juraians tend to pussyfoot around this and it's stated that First Contact's already been made and they think we're not ready to go yet.
  • This is a kinda spoilerific plot point in Panzer World Galient. After Hilmuka is revealed to be a Human Alien from a sort of galaxy-spanning policing entity with a very Star Trek-esque non-interference directive, the story shows a bit of her struggle to help the people of Arst overthrow its Evil Overlord while fending off her Obstructive Bureaucrat colleagues. Conversely, Mardarl, said Evil Overlord, is also an alien from a similar civilization, but he could not care less about fucking up other planets in order to achieve his goals.

    Comic Books 
  • From Marvel Comics: The Watchers have an "observe, don't interfere" law in place (thus their species' name). Eventually revealed to be the result of accidentally destroying another species by giving its members advanced scientific knowledge way too soon. (Uatu, the Watcher who is assigned to Earth, violates this law rather frequently in order to protect the Earth, having taken a liking to its inhabitants, and he has often gotten in trouble with his people because of it.) One of Uatu's favorite methods of skirting the law when he doesn't flagrantly violate it is to simply show up to observe in person. Given that he can just as effectively watch an event from light-years away, the only purpose this serves is to warn Earth's heroes that something of cosmic significance is about to happen.
  • In Krypton No More storyline:
    • Superman gets obsessed with stopping Earth from becoming another Krypton, and fearing pollution could destroy it, he goes on a rampage, destroying supertankers until his cousin Supergirl stops him, declaring that neither of them has right to impose their will on humans.
      Supergirl: And just where do you think you're going, cousin?
      Superman: Supergirl! Glad you're here! You can help me! This ship is a danger to all mankind — So we have to—
      Supergirl: Wrong! We aren't doing anything! We have no right to interfere!
    • Later she reiterates her position:
      Supergirl: The way you were acting towards Earth – trying to protect it from mankind, interfering in matters which were none of your business… matters which should rightfully be decided by humanity itself!
  • Buck Godot: Zap Gun for Hire:
    • Humans are forbidden from interfering with any race not advanced enough for space travel by Lord Thezmothete, because Mega Corps used to enslave such species.
    • Also the Teleporter considered humans to be animals because they couldn't teleport, though he did indeed interfere.
  • In a Masters of the Universe comic, Zodac and other Cosmic Enforcers are tasked with observing all that transpires in the Universe but not interfering except to maintain the balance between good and evil. Because of this on the rare examples when they do interfere they are just as likely to help the bad guys as the heroes.
  • In Bad Planet any alien civilization that mastered interstellar travel joins "the Grid", and one of their laws establish they cannot interact with lesser developed species who still haven't done that.

    Fan Works 
  • Last Child of Krypton: Defied hard by Jor-El, who specifically chose Earth to send the rocket to because they need the most interference.
  • In Origins, a Mass Effect/Star Wars/Borderlands/Halo Massive Multiplayer Crossover, the Eridians have one on paper at least, but considering how much meddling has happened under the guise "If you do things right, the lesser races will not know you did anything", enforcement is weak at best. Contrast with the Trans-Galactic Republic that will happily engage in a Technology Uplift if the society in question agrees (though said uplift tends to happen on the Republic's terms). A faction of Eridians created the Yuuzhan Vong in tubes, stripped the Force from the galaxies, and left Forgotten Superweapons nearly everywhere in the name of avoiding a greater threat. Considering that threat is the Flood, they may have a point.
  • The Angels from Sonic X: Dark Chaos have a strong non-interference policy regarding Demon border galaxies in general and the Milky Way (and Earth) in particular. It's only when the Demons start moving in and curb-stomping the Metarex that they take action and invade the galaxy in retaliation.
  • Bait and Switch (STO):
    • In The Wrong Reflection Captain Kanril Eleya invokes the Prime Directive as a reason why she can't tell the Klingon-Cardassian Alliance how to build a cloaking device (that and the fact that, per Star Trek Online's backstory, it would probably violate standing orders from the President). However, she does decide that she can even the odds and tell them how to defeat the Terran Empire's cloaking devices, which they had acquired via third-party interference from the prime universe.
    • In A Voice in the Wilderness Eleya uses the Prime Directive as an excuse for not retaliating against D'trel for killing General Q'Nel with the backing of the Delta Alliance. It's stated later that she agrees with D'trel that Q'Nel had to go, though "political assassination isn't exactly in the handbook".
  • The Mysterious Case of Neelix's Lungs: "Factoring Primes" is a rewrite of the Star Trek: Voyager episode "Prime Factors", and likewise has the cast debate the relative merits of the Prime Directive in the context that the Sikarians are using their own version as a reason not to give space-folding technology to Voyager and Vetar.
    • Harry Kim brings up the argument of Earth's history indicating that even well-intentioned interference in other cultures can be disastrous (an argument Picard threw in one TNG episode). Tom Paris disagrees, pointing out that most of the cases of interference in other cultures on Earth were either purely self-interested with people either not caring about the other culture, or outright conquering them.
    • Celes Tal, a Bajoran enlisted crewman of Voyager, gives a flat What the Hell, Hero? regarding the Federation using the Prime Directive as an excuse to not involve itself in the occupation of Bajor by the Cardassians.
      "Now you know how my people felt."
    • For his part, Gul Evek points out that his crew, being Cardassian Guard, is not bound by the Prime Directive, and it's the Cardassians and ex-Maquis who come up with the plan to make a back-room deal for the spatial trajector.
  • In Surrogate Of Zero, it's first defied when Asuka tells Shinji to ask Louise for details about Halkeginian magic, and then discussed later in dialogue between Asuka and Shinji, and Asuka and Rei.
  • Deconstructed in Kings Of Revolution. The TSAB's non-interference policy prevent them from conducting any deep investigation over the Earth's activities. LOGOS takes advantage of this in order to set up bases. More importantly, it keeps the heroines of Lyrical Nanoha from helping their countrymen suffering from the brutal treatment of foreign occupiers and are prompted to arrest those who do try to help. That draws additional ire from their former friends, with one pulling a Face–Heel Turn.

    Films — Live-Action 
  • Hard to Be a God is a whole movie dedicated to the dilemma of a human observer on a "primitive" alien planet with one interesting twist: the main reason for his superiors to send him there was to "observe the observer" — see if he would be able to avoid getting involved. (In fact, since 2008, there are two movies.)
  • In K-PAX, prot[sic], the mental patient/possible extraterrestrial refuses to elaborate on the mechanics of light-beam travel, as at our relatively primitive stage of civilization, he's concerned humans would end up using it as an apocalyptic weapon.
    prot: You'd be surprised how much energy there is... in a beam of light.
  • In Star Trek Into Darkness the Prime Directive, the set of rules stating Starfleet personnel avoid interfering with less developed alien cultures, is discussed during the opening away mission. Kirk gets demoted and loses command of the Enterprise for violating it.
  • Superman: Jor-El warns Kal-El it's forbidden to interfere with human history. That becomes a Plot Point later in the film.

  • In the World of Lone Wolf, the Shianti are a race of demigods that settled on Magnamund thousands of years ago. On request from the goddess Ishir, they are now forbidden from interfering in human affairs, even though Wytch-King Shasarak, one of their number, is doing just that. Of course, when a human baby accidentally lands on their island, there ain't no rule about teaching him to use magic and "allowing" him to go into the world to deal with the threat.

  • Star Maker, a 1937 novel by Olaf Stapledon (who inspired many of the "golden age" sci-fi writers) has the Symbiont race, Sufficiently Advanced Aliens who keep their existence hidden from "pre-utopian", pre-spacefaring races, revealing themselves only after a race achieves both of those so the fledgling races don't lose their "independence of mind" (pretty similar to the Vulcans that came after).
  • Speaker for the Dead takes place millennia after the events in Ender's Game and Ender in Exile. The Starways Congress have enacted the rule to prevent any other sentient species discovered from immediately becoming enemies of humanity. Speaker takes place on Lusitania, where the first alien species since the Buggers have been discovered. The pequeninos ("piggies") are initially viewed as inferior, due to their lack of technological milestones such as electricity, metalworking or archery. When the humans discover the piggies are aware of spaceships, and wish to become space explorers themselves, there is considerable commotion among the xenologists. The public controversy draws out the dark side ("Human superiority first!") of the trope. The pequeninos' attempts at jumping a few branches up the Technology Tree is eventually described—by a human, no less—as a sentient species (the piggies) exercising their rights as a sentient species to engage in trade and commerce with visiting extra-terrestrials (humans) for the betterment of piggy-kind. Children of the Mind begins with the Starway Congress fleet on their way to destroy the entire frigging planet, with this as a partial reason.
  • Animorphs:
    • "The Law of Seerow's Kindness", a law passed by the Andalites forbidding them to share technology with less developed species. It was named after Prince Seerow, who passed technology onto the Puppeteer Parasite Yeerks, unintentionally allowing them to become the Big Bad species of the series. The justification for this law is it protects primitive races from other primitive races by denying them the means to wage galactic war, but it dooms the Hork-Bajir and would have doomed humanity (and many other races) if Elfangor hadn’t broken it. As the as the series goes on that justification sounds increasingly hollow as the Andalites desperately try to cling onto their technological advantage, and show just how willing they are to sacrifice their allies to save themselves.
    • The Ellimist and Crayak also have rules about when they can and can't interact with other species, but for a different reason: the Ellimist wants to spread life and freedom, Crayak wants to spread genocide, and any open conflict between them would literally destroy both of them and everything else in the universe. Essentially, they're in a Cold War-style standoff, which is why they each either have to agree to let the other work openly or else act subtly enough to keep the other from knowing.
  • Tolkien's Legendarium:
    • By the time of the trilogy, the Valar could be said to have taken up a style of this similar to the Ellimist and Crayak: They tried to fight Morgoth directly, and the results were not pretty for Arda. They (and the related Maiar) are not exactly hiding, though; there are plenty of people in Middle-Earth (Galadriel, for example) who have personally met the Valar, Gandalf is a Maia, and Elrond is descended from one.
    • The Istari, meanwhile, are Maiar wizards sent to Middle-Earth to oppose Sauron. Nonetheless, they have a looser version of this trope in effect, in that they are forbidden from opposing Sauron by meeting power with power; their job is to organize and inspire the people of Middle-Earth against Sauron, not to fight the war for them. Hence, Gandalf doesn't use magic to solve the plot on his own because it's not his role, and the one Wizard who actually breaks this rule has already fallen to evil and allied with Sauron.
  • Elizabeth Moon's Remnant Population has "The People", Starfish Aliens who until events in the book, unwittingly share their planet with human colonists. After some humans try to land new colony ships on their nests (and get killed for it), they seek out and find Ofelia, the willing last human of a failed colony hundreds of miles away, who kept the colony's tech running for her own use. Unaware of the non-interference rule (which exists even though humans have never met another intelligent species, as they made many assumptions about what aliens will be like), Ofelia has to show and explain things like electricity to The People, initially so their curiosity doesn't kill them with a high voltage current. But it turns out The People are extremely intelligent and hungry for knowledge, to the surprise of all and the chagrin of the human officials and scientists who get sent to "undo the damage" (some with good but misinformed intentions and some crossing the line into "keeping the humans in charge").
  • Much of the Strugatsky Brothers' Noon Universe novels revolve around various aspects of this and its plausibility:
    • Hard to Be a God investigates how would a human observer fare on a planet stuck in The Dung Ages, while allowed limited intervention at best (for example, he may save a promising scientist deemed heretical by the Inquisition but has no authority to stop the planet from sliding into even further barbarism after a corrupt church gains power).
    • Prisoners of Power revolves around a civilian protagonist inadvertently crashing on a Diesel Punk world rife with pointless nuclear warfare. He single-handedly forms a plan to overthrow the government and their means of Mind Control... and coincidentally ruins the plan of undercover Earth operatives to solve the planet's issues in a far safer and more gradual way which, however, is implied to take decades if not centuries.
  • Amy Thomson's The Color Of Distance and Through Alien Eyes have humanity making first contact with a technologically primitive society of froglike aliens called the Tendu. They have little technology, but they do have impressive medical abilities; they can physically modify creatures, including themselves and humans, and heal just about anything. Humanity has to make reparations for burning down an important chunk of rainforest before they knew the Tendu were there, but they can't violate the protocols in doing so, to the Tendu's frustration; they know what humans have and are fascinated by it. When one of the Tendu decides to come to Earth, he responds to some of the doubts by saying that he, too, will abide by the protocols, and not teach humanity anything that it's not ready for.
  • Also in Darkover by Marion Zimmer Bradley: the humans have a directive never to interfere in the business of aliens, not even if the conflict seems as meaningless as the question how to open an egg. One really wonders who makes such stupid decisions.
  • In C. S. Lewis's That Hideous Strength, the planetary spirits are forbidden to intervene in Earth's affairs. Unfortunately for the bad guys, they are not forbidden to respond if Earth intervenes in theirs.
  • In Ursula K. Le Guin's Hainish Cycle, first contact teams are often sent to rather primitive planets, and many such civilizations are incorporated in the interstellar civilization — since it believes that even non-technological races have a lot to contribute (arts or philosophy). However, there is an embargo on teaching technology without authorization by the government. The Planet of Exile demonstrates the point when a human is wounded by an enemy dart, and must be careful, since while the natives use no poisons, the Earth Lost Colony does, and the used darts are sometimes fired back.
  • In the Star Trek Expanded Universe novel Uhura's Song, Kirk gets an order directly from the Federation President and the Commander of Starfleet. To emphasize (to both the readers and the characters) the severity of the situation (a plague that is threatening to cause the collapse of the Federation and kill a large portion of the population of multiple species), the President makes the following statement: "The Federation Council has agreed to waive the non-interference directive." That almost-casual statement is the President telling Kirk that the PRIME DIRECTIVE IS OFF THE TABLE.
  • Enchantress from the Stars talks quite a bit about the implications of this trope. Short version: it's worth it in the very, very long run, but damn does it suck in the short run.
  • The Bible. In the book of Job, Satan invokes a variant of the prime directive to legally bind God from helping Job and to allow Job to suffer. Also, in the Book of Genesis, when Adam forgoes God's rulership, God leaves, probably due to this directive. Then the other books carry through the theme of the hope of when God would or could intervene/interfere fully in human affairs again. (The Ransom story arc deals with this.)
  • In Mikhail Akhmanov's Trevellyan's Mission series, humanity and many other starfaring races specifically invert this trope, believing themselves to be duty-bound to help guide younger races, although they go to great lengths to avoid revealing themselves. The series goes into great detail as to the criteria for choosing which humanoid species to "progress", as attempts to help an alien species at the wrong stage of development ultimately made things worse for them. Some are hinted to have resulted in extinctions. As such, only pre-Renaissance races are interfered with. On one occasion, the human scientists and their Kni'lina counterparts are debating which of two Stone Age species which evolved on one world to eliminate. The first novel specifically deals with the protagonist attempting to figure out why a world is stuck in Medieval Stasis and why humanity's attempts at making changes utterly fail. It turns out the cause is a previously-unknown advanced alien race who follows a strict policy of non-interference except to stop a major threat against the very survival of the younger races. These "Paraprims" are Technical Pacifists who have descended from primates but are not humanoids (they're more like chimps and still have fur).
  • Usually averted in David Brin's Uplift series. "Pre-sentient" species are nearly always uplifted by the time they reach a stone age level of technology at the latest. However the Institute of Migration often designates planets or even entire regions of space to "lie fallow" for several million years so their ecosystems can recover before allowing re-colonization. Earth was in the middle of a cluster of fallow systems that had been devastated in a war and was overlooked (except perhaps by our mysterious Neglectful Precursors, but we'll never know if they existed).
  • Iain M. Banks' The Culture novels are basically a reaction against the silliness of the Prime Directive. The Culture, especially its exploratory organisation Contact, see it as their moral duty to make other civilizations (usually those less advanced) more like the Culture (and by implication, statistically better and happier). It usually takes the form of making sure the right rulers stay alive long enough to make their world a better place; whether through alien medicine or impossibly proficient bodyguards and armies. There are factions within the Culture who feel that this practice is wrong, resulting in diaspora like the Peace Faction (who believe in pacifistic non-interaction) and the Elench (who believe that they should be the ones changed by alien planets, not the other way round). And this doesn't even count the actions of Contact's darker cousin, Special Circumstances.
  • Elizabeth Bear's novel Undertow has an inversion: If a planet is inhabited, humans can only colonize it if the natives are pre-space. As you might expect, this sometimes results in a situation similar to what happened in most European colonies. But that's not even the best part. The book's major twist is that the natives of the world the book takes place on voluntarily gave up space travel and reverted to a pre-technological state. Which according to a literal interpretation of the Alien Non-Interference Clause, means the current colony is illegal.
  • Patricia Mc Killip wrote a duology (Moon Flash and The Moon And The Face) that discusses this with two dissimilar cultures on one planet.
  • Gregory Mcdonald wrote Fletch Too about visiting Africa and the discussion arose that concerned the rightness of Africa being put under a glass shield to protect them from technology/interference/etc.
  • Jack McDevitt's short story "Kaminsky at War" (set in the Priscilla Hutchins universe) explores the morality of such a rule, from the perspective of a researcher observing a planet locked in an endless and pointless war.
  • The very first Honor Harrington novel involves the technologically-primitive Medusans, who the Manticorans try to keep semi-isolated from modern tech (traders can sell steel tools but nothing powered, for instance), assisted by the fact the planet really doesn't have anything anyone wants (Apart from its location on a major trade/possible invasion route). When the Peeps provide advanced breechloading rifled muskets to assorted nomadic tribes, carefully designed so that they could be replicated with existing Medusan technology, the Manticoran governor sadly accepts the Manticorans will probably have to provide similar weapons to the more civilized (and friendly) Medusan city-states so they can defend themselves.
  • In the back story of the Foreigner series, the Pilots' Guild (the leaders of the thoroughly lost Phoenix starship) want all the humans to stay in orbit in their Space Station rather than land on the life-bearing planet below so as to not contaminate the culture of the indigenous sapient species. Or at least they claim that's their reason for not wanting anyone to go down to the planet. The humans who eventually do land on the planet think that the Guild doesn't give a crap about the indigenous population, and that their Alien Non-Interference Clause is merely a pretext to keep all humans in the system under their control. It turns out that they were both wrong and right. The Guild did have some genuine concern about humans contaminating the indigenous culture, but that was nonetheless a pretext for their greater concern: that aliens would contaminate human culture. The protagonist of the story, a descendant of the humans who landed on the planet, has as his main job to turn over human tech to the alien natives - but only at a rate won't disrupt their culture or society, and he specifically has veto powers to make sure of it.
  • In L. Sprague de Camp's Viagens Interplanetarias stories, the Terrans are specifically forbidden from importing technology to the warlike inhabitants of the planet Krishna. Enforcement of the rule is done by electronic brainwashing so that even if the natives capture and torture a visitor, they are unable to reveal anything. Note that clever ways to evade this rule drive the plots of several stories.
  • The Empire of Man in Jerry Pournelle's "CoDominium" future (also used in The Mote in God's Eye) uses both an inversion and a subversion of this rule. Low-tech planets are routinely taken over and ruled as colonies, but spacefaring societies are allowed to join the Empire as member worlds with much more control over their own affairs. Note that (with one exception) all the planets are lost human colonies in the first place. In the novel King David's Spaceship some primitive but far from stupid people from a world with Victorian level technology go to desperate lengths to develop space travel to avoid being colonized, only to run into the subversion: There actually are laws against supplying "disruptive" technologies to colony worlds. So there actually is a non-interference clause but it's only applied in ways that benefit the powers that be. They actually manage to build a Victorian technology spaceship (which they freely admit would be suicidal if there hadn't been an Imperial Battle Cruiser in orbit only to be sanctioned as a member world for providing Renaissance level technology to an even more primitive society.
  • In Andre Norton's Ice Crown, all worlds that are Psychocrat experiments are sealed, on the grounds that the trauma of the truth might be too great. When Roane finds the conditioning still in action, her uncle points out that removing it could have horrible effects on its subjects.
  • In David Drake's Ranks of Bronze The Federation prohibits the use of advanced weaponry on primitive planets, ostensibly for the primitive's sake but really to prevent them from getting ideas and becoming a threat. In addition, other forms of contact such as trade in raw materials, or slaves, are allowed with primitives. Trade Guilds can even strong-arm primitives into accepting trade deals so long as they stick to muscle-powered weapons, which is why one Guild buys a Roman Legion from Carrhae.
  • Averted in the Eldraeverse. There's actually a "Speculativism Index" for rough estimates of how easy it would be to sell uncontacted planets advanced technology based on their science-fiction.
  • The Ones Above from Brandon Sanderson's "Sixth Of The Dusk" are spacefaring humans, who are not allowed to interfere with the primitive humans of Dusk's world, not even to trade some of their technology. It's compared to adults refusing to trade with children; no matter how clever the child is, it's still exploitative. However, there's a loophole: They leave behind some of their technology where the primitives can find it, in the hopes that they will advance too quickly, and the Ones Above will be able to legally trade with them before they're actually ready.
  • The Enlightened League, in Year Zero is made up of all alien species that survived long enough to achieve warp travel and similar technological milestones, and they have this rule. It's strict self-preservation: most species that fail to join the league do so because they've obliterated themselves in nuclear war or similar disasters, and giving such primitive species high-tech weapons is highly illegal for reasons of safety.
  • In the short novel The Librarian (2015) the aliens become the target species from birth in order to learn how they live, to the point that not even the aliens themselves know they're not the native species until they die. This prevents any kind of outside interference or prejudices to murk the experience.
  • The dragons of Dragonvarld, although not technically aliens, have laws which play out much like this, preventing them from having much to do with humanity. A breach of these laws before the start of the books — specifically, the conquest of a human kingdom by a dragon — sets up the main plot.
  • In the Sector General series The Federation does practice a form of this trope under normal circumstances, but involving the eponymous space hospital is shorthand for "screw it".
  • In the interstellar society of Samuel R. Delany's Empire Star, there's a more complicated and limited version about the distribution of technology. If a culture is "simplex", you may import higher-tech stuff into it, because the culture won't have the imagination to do anything much with it anyway. If it's "complex", you can't bring in higher-tech stuff because it could create a social upheaval. Simplex and complex aren't themselves concepts indicating technological advancement as such, more like the narrowness or breadth of the culture's thinking.
  • Guardians of the Flame: Utterly averted-at least in the first four books, none of the main band even stops to think if it's ethically or morally justified to introduce huge changes into the sociopolitical culture of another worldnote . For example by them introducing guns, which triggers an arms race and trying to end slavery by violent attacks on slaver caravans rather than waiting to see if it comes about naturally as society evolves past the need for or permitting slavery. Not to mention setting up their own kingdom, forever changing the geopolitical makeup of the world. Possibly justified by the fact that Arthur Deighton/Arta Myrdhyn had already seriously interfered (including fighting a massive magical duel that laid waste to an entire valley) though it's not made clear whether he's an earth or local native.

    Live-Action TV 
  • Star Trek is the Trope Codifier: whether or not they did it first, they're the one most people have likely heard about.
    • The series has been somewhat inconsistent over where the borders of the rule lie. One fairly consistent point is that unless the culture in question is already aware of sentient life beyond their planet, or is technologically advanced enough (i.e. they possess warp drive) that such contact is inevitable in the immediate future, it's forbidden for Federation personnel to expose their existence to the aliens of the week. Multiple stories involve this being violated by accident, requiring the crew to scramble to do damage control. Standard procedure in the TNG era seems to be inducing Laser-Guided Amnesia via invasive brain surgery. There is usually a hole somewhere "big enough to fly the Enterprise through". Gene Coon, who is credited with creating it in Star Trek: The Original Series, reportedly remarked that his original intent was for it to apply only to viable pre-warp cultures.
      The Agony Booth: It really makes me wonder why such a troublesome plot device was ever introduced in the first place. Every captain in Trek history has basically wiped their ass with it, and it really does little besides call attention to the flaws within the franchise itself, something no good story should ever do.
    • The Original Series, at the very least, typically bypassed the Prime Directive by placing the ship and/or the crew in dire peril, with the only solution being one that would devastate/completely change the local society (see "The Apple" or "A Taste of Armageddon"), or by having the crew fix a problem caused by humans in the first place. In "The Return of the Archons", Kirk justified pulling the plug on the master computer Landru by saying that the Prime Directive was meant to apply to living cultures and the computer-controlled world was not one, which is a very thin justification indeed.
    • There are also at least two rules which override the Prime Directive: the Temporal Prime Directive (prevent/reverse changes to the timestream) and the top-secret Omega Directive (prevent anyone from learning of or producing the Omega molecule, which destroys Subspace). The Temporal Prime Directive doesn't even exist yet; time travelers from the future have mentioned it, but the "current time" of the Next Generation-Voyager era has a whole rat's nest of (almost completely unenforceable) rules instead that the main characters routinely ignore.
    • One Next Generation episode, "First Contact" (no relation to the movie) deals with the justified aspects of the Prime Directive. The Enterprise crew are on a secret First Contact mission to the Malcorians, a species on the verge of discovering Warp Drive. Over wine with the planetary Chancellor, Picard discusses with him the justifications of the Prime Directive and their obligation to leave the Malcorians alone if that is their wish. The Malcorians, who mirror 20th century humans in many ways, are undergoing cultural turmoil because of their rapid march of technology. Meanwhile, Riker was doing covert surveillance when he was injured and hospitalized: it becomes difficult to hide the fact that he's not one of them and he almost dies because the distrustful minister of security tries to use him to convince the Chancellor not to trust the humans. Because of this, Chancelor Durken ultimately decides that his people are not ready to learn they're not alone, though he promises to spend money and effort on education so they'll be prepared when the time comes.
    • In some instances, though, there have been Sufficiently Advanced Aliens who use a similar rule on the Federation protagonists, just to point out how douchey it looks when you're on the short end of it. Big example being "Prime Factors" in Voyager, where aliens that were entirely aware of and even sympathetic to Voyager's situation and capable of transporting most of the way across the galaxy decided that they had to be Lawful Stupid about sending the ship well on its way home. Of course, part of it was that they were just unwilling to lose a potential source of entertainment that Voyager's extensive database could provide. In the end groups of low-ranking crew and citizens from both sides just trade for it, and the tech turns out to be incompatible.
    • And then there are the times when they do finally feel justified in breaking the rule, such as in the TOS episode where it is discovered that the Klingons have been arming one of the tribes of a primitive planet. Kirk feels it's their obligation to offer the competing tribe a similar level of weaponry to defend themselves.
      • In the episode "A Piece of the Action" and some Expanded Universe material, it's been stated that the Prime Directive does not apply in cases where a pre-warp civilization has already been affected ("contaminated") by another outside influence. As Spock noted in the episode, the damage is done, with the civilization fully aware of aliens' existence, and the crew has to deal with it as it is.
    • By the time of The Next Generation, the Prime Directive has been interpreted to prohibit interference in the internal affairs of other cultures even if the culture is an advanced star-faring civilization. This came up during the brief Klingon civil war, where the Federation was unable to directly get involved, although they did block and expose the Romulans who were supporting one of the sides, which helped win the war for their side.
    • And ultimately, we learn that the Federation's prime directive is derived from the Vulcans, who would not have made First Contact had they not observed humanity's first warp drive flight.
    • Disturbingly invoked (and possibly incorrectly at that) in an episode of Star Trek: Voyager. Janeway and Paris are stranded on a pre-warp (but still advanced) planet that is using a source of energy that will literally wipe out all life on the planet the next day. Despite Paris' wish to warn them, Janeway orders him not to, citing the Prime Directive... despite the fact that this interference would literally save everyone and doesn't seem to contradict the actual Prime Directive.
    • Also seen in TNG "Pen Pals" and "Homeward". In those cases, extinction was part of the culture's "natural development," and in the former case Picard decided that they had to intervene upon a direct plea for help from the planet.
    • TOS' "The Paradise Syndrome" indicated that the Starfleet of the time disagreed - the Enterprise's mission is to prevent an extinction-event asteroid strike (but still without revealing themselves to the natives). Evidently, Starfleet re-interpreted the Prime Directive to no longer be a shield for less developed cultures but rather a dogma at some point between TOS and TNG.
    • In the TNG episode "Symbiosis", the Ornarans are suffering from a fatal disease and are dependent on medicine provided by the Brekkians, but this has led to the Ornaran society falling apart, while the Brekkians have become so wealthy from the profits that they have centered their entire society on exploiting the Ornarans. It doesn't take long for Dr. Crusher to realize the disease was cured ages ago, and that they were suffering from the withdrawal symptoms; the "medicine" is actually a highly addictive drug. She wants to put an end to this, but Captain Picard points to the Prime Directive, saying they cannot interfere. Picard then points out they can't interfere to maintain the status quo either. The Ornaran ships were no longer able to make supply runs for the medicine, and they wanted the Enterprise's help in repairing their fleet; by refusing, the Ornarans would have to face the withdrawal and hopefully get over it on their own.
    • The alien Organians from The Original Series had evolved into Energy Beings and preferred not to interfere in the affairs of lower lifeforms including the Federation. Part of it was a desire to not interfere in a species' natural development. A big part was they found interacting with other lifeforms disgusting since they could not stand any pain or violence and evolved specifically to get away from it. They only stopped the Klingon-Federation War because they found the potential bloodshed even worse. They eventually stopped enforcing the peace though the reasons why vary from losing interest to Expanded Universe reasons of being somehow removed from this universe.
    • A Star Trek: Enterprise episode involves the Enterprise finding a pre-warp race that is dying from species-wide genetic disorder. They have met other warp-capable cultures (the Ferengi were one of them), were unable (or unwilling) to help them either with the cure or with achieving warp flight. Phlox manages to find the cure but in the process discovers that there is another sentient race living on the same world who are being deliberately kept down by the dying race. He argues to Archer that evolution is killing off one race to raise another (try not to head-desk at that). While Archer initially dismisses Phlox's concerns and prepares to hand them the cure, he eventually agrees that it's not up to him to play God. Mind you, this is before the Prime Directive, which he lampshades by commenting that maybe someday they'll come up with one to tell captains like him what to do in these situations. He also refuses to give them warp technology, but only because it would be irresponsible to give it to someone with no experience handling Anti Matter. Basically, the episode canonizes the Prime Directive and everyone who invokes it as Head-in-the-Sand Management.
      • A few other ENT episodes involve them finding primitive cultures and exploring them without interference. On one of them they stop a group of off-planet criminals who are poisoning the local water supply. On another, a thief steals a communicator from a member of the (disguised) landing party, forcing them to come back to retrieve it, only to be captured by the local State Sec suspecting them of being spies for their enemies. Human technology and various biological differences baffle the captors, but Reed manages to convince them that they're Super Soldiers genetically-engineered by their rivals. They manage to escape with the communicator, only for Archer to grimly point out that they have already interfered in local affairs. Now they think that their enemies are growing an army of Super Soldiers with advanced weapons.
    • And then we have one of the more reprehensible applications of the Prime Directive when the Bajorans are introduced in "Ensign Ro", with the Federation refusing to involve itself in the Cardassian Occupation of Bajor on grounds that it's an internal political matter, despite the fact that the Federation was in open warfare with the Cardassians for much of the latter half of the Occupation. To their credit, once the Bajoran Resistance finally forces the Cardassians off the planet, the Federation is quick to step in with reconstruction aid and naval protection.
    • There's also one case in Star Trek: Deep Space Nine where Ben Sisko uses the Prime Directive as an excuse for not endorsing Kai Winn Adami as a candidate for First Minister of Bajor, stating that Starfleet regulations forbid him from becoming involved in internal political matters. Unstated is that he plain doesn't like her and wouldn't endorse her even if he could. In fact the core conflict for his character in the early seasons was that he was both forbidden to interfere in their internal affairs while also acting as the emissary for their gods at said gods' request.
  • Babylon 5 may or may not have had a formal rule but advanced races could and did deny technology to other races believed to be "not ready".
    • Londo actually tells the Earth government in In The Beginning that the Centauri as a matter of policy do not sell advanced weapons systems to developing worlds. This does not stop their enemies, the Narns, from selling Earth pirated Centauri weapons technology at a sizeable profit.
    • In the episode, "Deathwalker", a renegade Dilgar scientist named Jha'dur is captured but bargains her freedom with a breakthrough medication that grants immortality. Before her medication can be mass-produced, she is killed by the Vorlons. Ambassador Kosh tells an assembled audience, "You are not ready for immortality." It's made complicated in that, unknown to most of the cast, the medicine was a trap; it requires the murder of a sentient being to use, and Jha'dur had planned for it to cause the other races to fall on each other like rabid animals to fuel their own immortality.
    • Epsilon III was declared off limits to all (episode "A Voice In The Wilderness") because the technology of the giant computer contained there would give any one race that got it an unfair advantage. This included the race that built it.
    • After the Vorlons had left the galaxy, a number of people attempted to travel to Vorlon to lay claim to the advanced technology there; all of them got shot down. Lyta explains that humanity was not presently meant to have Vorlon technology and won't be for about a million years.
    • On the other hand, in the Crusade spin-off series, Captain Matthew Gideon would launch a full spread of modified probes (uploaded with considerable information about Earth and the Interstellar alliance) at a pre-hyperspace planet at the end of Visitors From Down the Street, which abounds in X-Files references. The Excalibur picked up two agents from an alien world who are looking for proof of a government cover-up. They show pictures of Mount Rushmore and old Earth blimps. They also dress in Earth fashions from 200 years go (ie: from the time period at the time of the show's shoot). One of them can speak English because of information stolen from the conspirators. The Reveal: Years before, the government had found itself in a time of social unrest similar to The '60s. Upon discovering Earth broadcasts, they used them as part of a truly Magnificent conspiracy; manufacture appropriate "evidence", then dispatch The Men in Black to suppress it. The resultant subculture of Conspiracy Theorists absorbed the government's critics and kept them wasting their time chasing "aliens" rather than engaging in civil disobedience. Every crime the government committed afterward was thus blamed on "Outsiders" who secretly manipulated their civilization, permitting them to do as they pleased. Gideon's reasoning for launching the probes to expose the real conspiracy: the government already knew about alien life, and was using humans as scapegoats for unpopular domestic decisions. If that went on unimpeded, they would be a hostile power once they did discover starflight. Gideon's interference was motivated as a rebuttal to the accusations being made against Earth. He was questioned about whether this violated any non-interference principles and replied "Screw 'em."
    • One minor race that embraced the idea was featured in a single episode, and everyone they met reacted with abject horror at their callousness. Other than using the word "inferior" instead of "less advanced" it was basically the original Prime Directive. They decided that humans were worth allying with when they learned about the concept of slums.
    • The Interstellar Alliance has rules about not monkeying about with the cultural and internal affairs of its members, but it also has a Declaration of Principles that all of those members have to sign, so we can be fairly certain none of them have anything really obnoxious in their culture (like killing people for stepping in the wrong field).
      • G'Kar makes a speech in one of the episode that more or less synthetizes the Declaration of Principles (that he wrote), it include things like freedom of speech, freedom of religion and the right to pursuit happiness.
    • An important point is that none of the races now around developed hyperspace travel. They all copied it at first, and it dates back to the First Ones. Furthermore, rather than being out of concern for a species development, technology is traded purely on selfish reasons. When Humanity was contacted we sent a few sublight probes to the nearest stars not to arrive until years later. We bought most of our better technology from the Centauri and then developed it. However one thing is clear, joining the Interstellar Alliance gives the nice carrot of artificial gravity to less developed races.
      • An interesting detail about hyperspace travel is that, according to the Expanded Universe, at least, not only has no currently present species developed it, but none ever could. The key material for all known forms of hyperspace travel, Quantium-40, is explicitly stated to never be found in systems with habitable planets.
    • According to the RPG, Earth Alliance once didn't have it, made first contact with a bronze age culture... And observed with horror the instant cultural collapse and the wars fought to gain the favour of the "sky gods". Hence why current EA does have it.
    • Canonically, though, the Earth Alliance seem not to avoid at all intervention with other races internal affairs as shown in the series. The Earth fought an entire war against the Dilgar in order to help the less advance members of the Non-Aligned Worlds League and in one episode the Earth government sent soldiers to help an ally dictator violently supress a rebelion, and after the creation of the Interestellar Alliance the canonical Expanded Universe mentions how the organization kept intervention in non-member worlds as, for example, it helps the Centauri faction lead by Vir Cotto fight off the Drakh and their supporters from the Centauri government.
  • The races of the Stargate-verse vary in their approach to this.
    • The Tau'ri (Earth humans) reject it and hold it as their duty to help humans and less advanced, non-hostile races on other worlds, usually from aggressive and more powerful enemies who seek to either enslave or destroy them. Whilst they will gladly offer beneficial industrial or medical technology to their allies, they (generally) draw the line at giving up advanced military technology, especially when it's obvious that doing so would be detrimental either to their civilization or give their allies an unfair advantage over other foreign powers present on their world. It helps that the "aliens" are usually Transplanted Humans and not technically a different species.
    • The Tollan follow it strictly after their neighboring planet self-destructed because of technology they were given. They firmly refuse to give up any technology to less-advanced races, even beneficial devices that have no military or strategic value at all.
    • The Asgard generally don't share their tech with less advanced races, but make numerous exceptions for the Tau'ri because over the course of the series, they have proven themselves both trusted allies and responsible enough to use the technology wisely. To the point where Thor convinced the Asgard to bequeath the Tau'ri all of their technology, when the Asgard chose to commit ritual suicide after their clone degeneration became irreversible.
    • The Ori and the Goa'uld flaunt their tech and meddle all the time, posing as gods to less advanced civilizations.
    • In addition, the Asgard and the Goa'uld have a treaty which leaves certain human worlds free from Goa'uld influence in exchange for limiting their development and preventing direct Asgard interference (they can pose as gods, though, a necessity for those primitive cultures to understand their situation). Earth gets lumped into this treaty, but they wormed their way out of the tech restriction. In one episode Stargate Command discovered an asteroid on a collision course with Earth. They asked the Asgard for help, but the Asgard refused on the grounds that their treaty with the Goa'uld prohibited averting natural disasters. The asteroid turned out to have been artificially created and dropped off by hyperspace, but by that time Earth had to save itself.
    • There's also the Ancients, who turn out to have Ascended long ago. Where Star Trek's Prime Directive draws the line at the invention of Faster-Than-Light Travel, these guys won't interfere with those who are still corporeal. Unfortunately, this also extends to (1) what's done with all the supertech they left behind when they Ascended, and (2) allowing evil by fellow ascended individuals, such as Anubis and the Ori. If as an Ancient, you try to stop the bad guys from abusing Ancient tech, or even try to prevent a half-ascended Evil Overlord (whose idea was it to make frakkin' Anubis a candidate for ascension, anyway? No, really, who?note ) from razing a whole planet, you will find yourself kickbanned right back to corporeality. There's a reason the Neglectful Precursors page has an entire section devoted to these guys alone. Daniel only allowed himself to be ascended to the Ancients' level because he thought he could do more good among them, and is human again now because, well... he was wrong.

      Of course, the real reason the Ancients are such Neglectful Precursors are because the power we see on the rare occasions they cut loose means they are capable of solving the plot in ten seconds flat. The Ascended Prime Directive is how the writers got out of painting themselves into the corner with finally revealing who the Ancients are (presumably, when all we knew about them was "once upon a time, someone built awesome tech, and then the Goa'uld ganked it," the writers didn't have in mind a race that was nigh-omnipotent and still present.) They could finish the Goa'uld, deal with the Wraith and the Asurans, and bring the crew of the Destiny back to Earth with a thought — the main problems of the three series, all problems they created by leaving their stuff lying around — but where's the fun in that.

      Finally it should be noted that the Ancients do interfere - against other Ascended Beings. The reason their Evil Counterparts, the Ori, don't flat-out invade the Milky Way themselves is because the Ancients keep them at bay. Anubis is in a bit of a grey area here: he was forcibly "de-Ascended" halfway, so while he doesn't have all the power of an Ascended, he's still orders of magnitude more powerful than any other creature, not to mention immortal. Anubis basically is restricted to never using his Ascended powers... but knowledge is still fair game (because, conceivably, a non-Ascended could obtain some Ascended knowledge). The Ancients let him run wild with that as Oma Desala's punishment for Ascending him in the first place, basically saying "All this death, slavery, and horror he causes now? That's your fault."
    • In Stargate Atlantis, a coalition of various Pegasus Galaxy civilizations wish that the Tau'ri had one of these. They capture the Atlantis team to put Humanity on Trial over the sheer amount of death and destruction that has occurred ever since they showed up. Mostly because they were doing just fine with the "get culled every few centuries" thing and the Atlantis team bumped that date up by a considerable amount, ruining all their lives.
      • They also didn't win any points for accidentally teaching the Asurans how to alter their base-code, leading them to be able to go on the war-path against the Wraith. Which sounds good on paper, but considering their primary tactic consisted of wiping out human worlds to deprive Wraith of their only source of food... they were understandably a little miffed.
      • And they were responsible for Michael, who after being experimented on to create a drug that suppressed Wraith DNA and leave the Human elements behind, was left with a huge chip on his shoulder. Michael later would use this research to create Hybrids and build an army to take over the galaxy. In at least one Bad Future, he even won.
      • And they accidentally perfected the Hoffan drug, a vaccine that prevents Wraith feeding, but kills half of those vaccinated with it. This lead to the Wraith wiping out any world they even suspected had been exposed.
  • In Doctor Who, the Time Lords adopted an official policy of neutrality and non-interference, acting only as observers save in cases of great injustice, after granting advanced technology to the Minyans who then destroyed themselves in a series of nuclear wars. Which is not to say they always adhered to it... Or in the Doctor's case, ever. He at least limits his involvement to "stop the threat of the week, then hop back in the TARDIS", and isn't keen on, say, 21st century Britain having particle guns. In "Aliens of London", he tells Rose that he can't interfere in First Contact, because it's something humans have to do on their own. Once he realizes the aliens are a threat...

    Captain Jack Harkness actually calls him out on this in his first appearance in "The Empty Child", saying that he "Should've known [they] weren't Time Agents [by their poor attempts at fitting in in WWII England]." Played completely for laughs by the time of the 11th Doctor, who explains his Prime-Directive-ish policy to Amy Pond in "The Beast Below" — she turns away to digest it, and by the time she's turned back, the Doctor has zipped away to start actively interfering on board Starship UK.
    Amy: So is this how it works, Doctor? You never interfere in the affairs of other peoples or planets, unless there's children crying?
    Doctor: Yes.
  • A rare non-science fiction example of this trope is from the 8th season JAG episode “In Country”, where Bud bonds with a suspected terrorist by discussing the merits of the Prime Directive, as both are fans of ''Star Trek'', using this to obtain useful information. (All this as opposed to an ineffective asshole CIA Officer who’d advocated torture to extract information.)
  • My Favorite Martian, which first aired in 1963, three years before Star Trek premiered. Martin speaks several times about how he admires the achievements of humanity — the discovery of gravity and electricity, the space program — has witnessed many of them, but never steps in to do it for us.

    Tabletop Games 
  • Space 1889 So averted it’s downright inverted. Europeans actually consider it a good thing if not an outright duty to intervene on Mars and spread the blessings of their civilization to others willy-nilly.
  • In Classic Traveller, the Scout service asked for Red Zone classification for planets with developing civilizations to protect them from off world interference. Though most of the time the Third Imperium will reveal itself to TL 5 (approx. mid-20th century) planets, or whenever they decide the locals can comprehend the existence of extraterrestrial life.
  • Manhunter. The A.T.P.D.S. places Protected World status on planets with young civilizations to stop interference that could change the course of the civilization's natural advancement. It also has laws that prevent its citizens from interfering with the civilizations on unexplored planets.

    Video Games 
  • The Pangalactic Federation of Star Ocean has the Undeveloped Planet Preservation Pact, which differs from the Star Trek version in that people don't get in as much trouble if they break out the advanced tech to save their own lives. The UP3 was made with good reason, even if only a handful of the architects of it knew the real reason why it was put in place - someone did destroy a planet by providing advanced tech, and became the main architect of the UP3 as a result. Which may be somewhat of a plot hole when you consider that in the rules of the UP3, a 20th century world can be upgraded from "Protected Planet" (no interference) to "Developing Planet" (eligible for contact and technological uplifting). The planet that was destroyed leading to the creation of the UP3 was mid-20th century. On the other hand, it can also be interpreted as cooler heads prevailing, and realizing that one guy feeling guilty about picking up the Idiot Ball and giving antimatter to a Mad Scientist who blows up her planet with it doesn't mean other worlds can't be contacted in a more reasonable manner.
  • Mass Effect plays with this trope a fair bit.
    • While none of the civilizations of the verse have such a rule, salarian scientist Mordin Solus holds the view that there should be one, citing the fiasco with the krogan as an example. Background: as a primitive species, the krogan had been given advanced technology to help turn around a losing Bug War against the rachni. But the krogans' prodigious birth rate (previously balanced out by the fact that they came from a Death World where only one in a thousand krogan survived to reach adulthood), combined with their natural aggression, led to them turning around and becoming as much of a menace to other sapient species as the aforementioned rachni. It took the "genophage" sterility plague to keep them from overrunning the galaxy.
    • We learn in Mass Effect 2's Lair of the Shadow Broker DLC that when new pre-spaceflight races are discovered, the Citadel sends "First Contact Teams" to their home planets to begin sharing technology, updating translators and explaining Citadel laws and culture to the newly discovered species, preparing them to join the galactic scene. Then they ran into the yahg, a species even more brutal than the krogan, who massacred the first contact team. This led to the Council 'blockading' the planet, preventing anyone getting off it (with one exception, an individual that was snuck off-planet possibly as a sort of living trophy. The sneaker was The Shadow Broker, and that yahg took his place by killing him, and remained on that throne for sixty years until Liara came along.) So while they don't hold a general rule requiring it, they do seem to adopt this policy on a case-by-case basis. Then it's revealed in the next game that the salarians are planning to uplift the yahg as shock troops. One has to wonder why salarian culture revolves around science if they never seem to learn from mistakes.
    • This forms part of the backstory before the game. The turians first discovered humanity trying to activate an uncharted mass relay, and intervened because doing so is a major faux-pas: the last time someone did it, they found the rachni, which ended well. Of course, instead of contacting the humans and explaining what was going on (how were pre-contact humanity supposed to know an unknown Galactic Law prevents them from tinkering with the relays?), the turians opened fire instead. This started a 3-month-long conflict which humans call "the First Contact War" and turians "the Relay 314 Incident." It only ended when the Council finally learned of the situation. The Council were naturally furious to find out that the turians had performed a pre-emptive strike on an unknown species without getting authorisation.
    • The geth enforce this on themselves as they believe all species should self-determinate.
    • Subverted with the Protheans, as revealed in Mass Effect 3. When a civilization showed promise, they would make the that civilization an offer: Join the Prothean empire, or be conquered. Those who resisted would inevitably be conquered and forcibly uplifted to become part of the Protheans' galaxy-spanning empire. Either way, cultural assimilation was enforced, such that any number of species might call themselves Prothean.
    • Renegade Shepard can call out the Prothean Javik for his race leaving technology behind, uplifting races forcefully and genetically engineering natural biotic ability onto the asari and leaving them the most advanced of their technology, saying "We didn't earn it ourselves", but Javik counters that they had to do this to unite the galaxy to fight off a Reaper genocide.
  • In the upcoming MMO Star Citizen, the United Empire of Earth has passed the Fair Chance Act, which prohibits hostile terraforming, mining, or most other forms of Human intervention on any planet with indigenous life of reasonable potential to develop sentience within space discovered and subsequently incoporated into the UEE, prior to the events of the game. Violators can face everything up to and including the might of UEE's military forces. Unfortunately, as the UEE becomes overextended over time, universal enforcement of the act proves difficult.
  • The Protoss of StarCraft had this policy ever since an incident with a minor race called the Kalath. Some researchers revealed themselves in an attempt to stop a civil war and both sides attacked the Protoss instead, Collossi were built and used to decimate their population. The Protoss even considered the warp-capable Terrans to qualify as "lesser races" under that policy and only revealed themselves to "purify" Terran colonies that became infested by the Zerg. It's revealed in Legacy of the Void that the Xel'naga also had such a clause, something which naturally concerns Artanis considering the Protoss were uplifted by the Xel'naga in the first place. Of course, it turns out that Big Bad Amon was responsible for the uplifting.
  • In Kingdom Hearts, the protagonists have a self-imposed "No meddling" rule that's summarized as "Don't let anybody know you're from another world" and "Don't interfere in the normal affairs of the world you're visiting". The only exceptions allowed is when it would go against not stopping the bad guys which are using dimension-invading monsters you're supposed to be fighting. This rule is mostly forgotten in subsequent games, mostly because the villains have meddled so much that not doing anything would lead to the collapse of the universe. In an interesting twist, the villains actually play to this more than the heroes do, at least in 358/2 Days where several levels have Stealth Based Missions. By the time of II, however, their plan is almost complete and they can afford to be much more open in their manipulations.
  • In Kingdom Hearts: Birth by Sleep, the three protagonists are part of an order of Keyblade knights sworn to keep order in the Realm of Light after the Keyblade War shattered it into pieces. While they adhere to the "don't tell locals about other worlds" part of the rule, they have free reign to act openly otherwise due to the Unversed invasion (it's implied that they'd be forbidden to interfere otherwise). Terra ends up violating the clause-such as it is-by telling a young Riku about the world outside Destiny Island and even passes the ability to wield the Keyblade to him, setting him up for his Start of Darkness at the beginning of the series.
  • In Stellaris Empires can set their own policies on what level of observation of native species is allowed, Xenophile empires get unhappy by anything more than passive observation while fanatic Xenophobes can't passively or actively study natives but can invade them. They can also choose whether to Uplift pre-FTL species, which Xenophobes don't like.
  • In Star Trek Online, we find out that this is the main reason the Iconians were nearly killed off: they had incredible technology and lesser races wanted it. However, the Iconians feared they would use it for terrible purposes and refused to allow them access at that scale if they weren't sufficiently advanced enough. However, the races grew insanely jealous and thought the Iconians arrogant, thus they ended up bombarding Iconia in order to get the technology. They didn't succeed.

    Web Comics 
  • In Spacetrawler
    • "Dark Planets" home to sapient life with no significant space presence are not supposed to be contacted. The system is still ripe for exploitation: species can be declared non-sapient for spurious reasons like bad fashion sense, and species who do achieve space travel immediately become fair game for any other species to conquer.
    • The truth turns out to be more insidious, Qwahntoo, the founder of the GOB, used the classification to cut off planets he considered to be threats. For instance humans are related to the Eebs that he enslaved.
  • Deconstructed (as part of an extended Take That against Trek in general) in Quentyn Quinn, Space Ranger. The "First Law" is pointed out to have been written to keep con artists from starting cargo cults... not to ignore when a civilization is to be eaten by an alien probe, just because they haven't mastered FTL yet. Unfortunately, this is all pointed out by the Wesley of the crew, who (despite basically being the only person onboard with half a brain) is promptly told to shut up about halfway through his explanation. In a later arc the hero's government convicts the Picard-parody of eight million counts of negligent homicide for refusing to divert a comet that wiped out a bronze age civilization he and his ship were observing. The judges even go so far as to call the Federation's policies "racist".
  • Schlock Mercenary:
    • Deconstructed via author's note. Of course, the civilization Tagon was running guns to was already being exploited and enslaved by other aliens, so Prime Directive type rules probably wouldn't apply anyway.
    • Later, when the company is hiding from the Teraport Wars, they discover a primitive planet with two species on it.
      • The first are pseudo-whales who meet the mercenaries when one of them tries to eat the captain, who quite justifiably kills it. While the company chaplain is trying to figure out if it was sentient, the rest of the company is eating it. And when the chaplain complains that he needed to examine the brain they ate, he is told "We can always kill a few more for you. We can get more brains."
      Theo: Lord have mercy on their souls, because I am certain they know not what they do.
      • The second are a humanoid tool-using species Schlock encounters while fighting a carnivorous plant. Once again, the chaplain is wondering whether or not they should interfere, while some of the company have already taught the natives volleyball, and the demolitions expert is almost done teaching them how to make gunpowder.
      • When the company has to leave, they leave behind an Uplift robot to bring the humanoids up to a modern standard of living in just a few generations. Unfortunately, the natives toss it into a volcano in an attempt to bring the mercenaries back. Fortunately, the ensuing eruption ("Shhka....") forced the land-dwelling natives to migrate closer to the ocean and the experience of meeting and interacting with the mercenaries made them less suspicious of outsiders allowing them to form a mutually beneficial alliance with pseudo-whales when they climbed up on the beach. It also forced them to migrate across the ocean before a massive super-eruption occurred that would otherwise have wiped them out.
  • While they don't seem to follow it too strictly, the Nemesites in The Inexplicable Adventures of Bob! have a non-interference policy toward Earth in the form of designating us as a nature preserve, because any species without interstellar travel is considered wildlife. While this was initially treated as a joke, Voluptua has since pointed out that, at least in the short run, it is probably a good thing for us, since inducting us suddenly into the Space Empire which surrounds us would create total havoc on Earth.

     Web Original 
  • In the podcast story Space Casey humans have interplanetary travel but the "Old Ones" are keeping them isolated from galactic society, ostentatiously for our own good. Though they do allow one researcher to come to our system once every hundred years or so. And eventually it turns out that the "Old Ones" are just a pair of con artists pulling a fast one on the galaxy with some technology from the future.
  • In STO Forum: Versus thread (rp) Eleya grumbles a bit about the Prime Directive ("I am so getting court-martialled for that") after Kang stun-snipes a priestess to stop her from performing a Human Sacrifice (she was trying to avoid interfering too much, but they were low on water and needed to trade). Kang justifies himself by the fact that the Klingons don't have a PD-equivalent: they work it on a case-by-case basis. Eleya also considers that they may have deterred them from performing more sacrifices in the future, which is probably a net positive.
  • The Jenkinsverse has an ineffective version of this that reads more like wildlife conservation than any effort to preserve the cultural identity of fellow sophonts.

    Western Animation 
  • Parodied by Futurama with Directive B10.8:1 A.K.A. "Brannigan's Law"; the law itself is pretty straight but Brannigan doesn't actually understand it himself, and ends up breaking it at one point. As Leela points out in the episode this comes up in, the law is inconsistently applied. In this case, it prevents people from interfering by evacuating the local life-forms from a planet which is doomed because people already came and interfered by mining out its entire core.
  • In Superman: The Animated Series, Mr. Mxyzptlk's species had something like this; in his second appearance, the rulers of his dimension put him on trial for "meddling with an under-evolved species" (along with violating dimensional travel laws, and worst of all, not keeping his word, which is apparently a serious crime there). As punishment, he was banished to Earth's dimension (without his powers) and required to do a good deed for the inhabitants. Superman ordered him to perform three months' community service as his good deed...on Bizarro World.

    Real Life 
  • The Other Wiki has a list of peoples who have kept culturally isolated or were until fairly recently. Most of them have an estimated 300 or fewer people (which is not a sustainable population without massive problems due to inbreeding). In general, uncontacted people are left alone to protect them from disease, or because they are actively hostile.
  • The Fermi Paradox is the unresolved question of why we haven't had aliens visiting since before we even evolved into modern humans. After all, our sun is relatively young, and there would have been more than enough time since the beginning of the universe for a Galactic Superpower to have formed. One answer is the "zoo hypothesis," which states that aliens are under some equivalent of the Prime Directive. Or, less benignly, that they want us to stay lab rats, or not become a potential rival. Though others have suggested that aliens aren't interfering with us because we're just not that interesting.
  • NASA once prevented the Galileo probe, which was exploring Jupiter, from crashing into the moon Europa. Europa has a chance of holding life, and they don't want risk "infecting" the moon with microbes from Earth, which could kill all life on Europa before it is even confirmed to exist. (They de-orbited Galileo into Jupiter instead.)note  For the protection of any ecosystems that might exist on possibly life-bearing worlds, there exist specific international rules governing how "clean" spacecraft must be if they are going to contact such worlds. NASA has Planetary Protection Officers charged with overseeing the compliance with these rules. (Galileo itself would have been in the least strict classification, being a remote sensing platform that would not be expected to physically contact a possibly life-bearing world. The Huygens lander was in a higher category, since it was to land on a world we cannot be certain contains no life of any kind. A lander like Viking is in the most strict category, since it needs to be both clean enough to not risk contaminating the target world, but also its own life-detecting experiments. This is required because it was proven with the portions of the Surveyor 3 probe recovered by Apollo 12 that microbes can survive for years in protected spots inside spacecraft otherwise exposed to open space.)
  • Laws established for the protection of endangered species often require that they be left entirely undisturbed by humans, even when taking action might preserve individual members of that species (e.g. letting baby sea turtles crawl into the sea without help). Like the Prime Directive, this can have bizarrely inconsistent effects. Areas are made inaccessible to development because they are an edge territory for a protected species, while the nearby area where they thrive has no protection at all.

Alternative Title(s): Prime Directive