History Recap / BrooklynNineNineS6E06TheCrimeScene

** Jake compares Rosa's hair first to Edna Mode from ''WesternAnimation/TheIncredibles'', then to Rapunzel from ''WesternAnimation/{{Tangled}}''.

* ChekhovsGun: The Air Conditioner. It was mentioned earlier in the episode, and the CSI stated that they couldn't turn it on because it would tamper with the crime scene. [[spoiler: When the crime scene was finally cleaned up and the air conditioning was turned on, it rattled objects in the air vent, which led to Jake discovering the killer's hiding spot.]]
** Also, during the initial assessment, Jake is intrigued to learn that the victim was an investigative reporter, but loses interest when he learns the guy was investigating chicken farms. [[spoiler: When they finally catch the killer, it turns out he was hired by a poultry conglomerate who the victim had caught bribing government officials.]]

* BottleEpisode: The episode is mostly Jake and Rosa working on the case, with the other regulars only making brief appearances. The first half takes place entirely inside the apartment where the murder took place, although on multiple days.

* NotSoDifferent: Rosa chastises Jake for promising the victim's mother that they would find the killer because she reminded him of his own mother. Later, Rosa does the exact same thing because the fact that the mother had lost touch with her son years ago reminded Rosa of her strained relationship with her mother after she came out.

* SurveillanceAsThePlotDemands: Discussed and justified. After the murder, the police gathered and collated video footage from multiple public and private security cameras. While this takes work to assemble, once it's done, they have video of the entire building and the surrounding streets. Jake comments, with some horror, that they're literally always being watched and sarcastically comments that [SinisterSurveillance it will surely never backfire].

* ChekhovsGun: The Air Conditioner. It was mentioned earlier in the episode, and the CSI stated that they couldn't turn it on because it would tamper with the crime scene. When the crime scene was finally cleaned up and the air conditioning was turned on, it rattled objects in the air vent, which led to Jake discovering the killer's hiding spot.

* RedHerring: Invoked by the killer; he spread bags of other peoples' blood around the victim's apartment to make it look like there were more people there, and to throw off the police.

** Jake compares Rosa's hair first to Edna Mode from ''WesternAnimation/TheIncredibles'', then to Rapunzel from ''Disney/{{Tangled}}''.

* SanitySlippage: Jake begins to lose it due to the difficulty of the case.

* NiceJobFixingItVillain: The killer ends up giving his plan away by leaving his trash inside the air vent in the apartment, allowing Jake and Rosa to find it and figure out how he did it.

'''''The Crime Scene''''' is the sixth episode of ''Series/BrooklynNineNine'''s sixth season.

* ShoutOut: CSI agent Franco [=McCoy=] acts like Gil Grissom from ''Series/{{CSI}}'', making weird quips and even doing a [[Series/CSIMiami Horatio Caine]]-style GlassesPull.

* KnewItAllAlong: Jake, who had claimed at the beginning to have counted 15 CSIs, despite Frankie claiming to only have 14. Turns out, Jake did count 15; except one of them turned out to be the killer making his escape.

* GagHaircut: Rosa lets her girlfriend Rosalyn practice her hair styling on her, leading to some amusing and out-of-character looks.

* RedHerring: Invoked by the killer; he spread bags of other peoples' blood around the victim's apartment to make it look like there were more people there, and to throw off the police.

* RightAllAlong: Jake, who had claimed at the beginning to have counted 15 CSIs, despite Frankie claiming to only have 14. Turns out, Jake did count 15; except one of them turned out to be the killer making his escape.