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Playing With / Conviction by Contradiction

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Basic Trope: Finding a hole in someone's alibi immediately proves their guilt, with no chance for reasonable doubt.

  • Straight: The murder took place in the subway. Alice says she couldn't have been in the subway at the time of the murder since she knew she would be working overtime, but Detective Bob notices that her metro pass is not where she normally keeps it, meaning that she must have taken it, killed the victim, and commuted away from the scene of the crime. Alice is jailed on this logic alone.
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  • Exaggerated: Alice claims she went to work at 9:00. Investigation reveals she actually went to work at 8:59. An arrest is immediately made.
  • Downplayed: Detective Bob does not order an arrest on Alice upon learning this, but he does shift all of his efforts into proving her guilt.
  • Justified: The police are corrupt and itching to get the murder case over as quickly as possible via Kangaroo Court.
  • Inverted:
    • Conviction by suspicious lack of contradiction.
    • Upon being accused, Alice flawlessly recites a list several reasons as to why she could not have been at the scene of the murder. The police arrest her based on this - if she's innocent, why would she memorize all that?
  • Subverted: ???
  • Double Subverted: ???
  • Parodied:
    • Alice is arrested for a perceived contradiction that is completely unrelated to the murder case.
    Alice: I couldn't have been involved in the murder, I was at work when it happened. You can ask my employer.
    Bob: Fair enough.
    Alice: Also, wearing socks with sandals is completely acceptable.
    Bob: {handcuffing Alice} You have the right to remain silent. Anything you say can be used against you in a court of law...
    • Alice recounts a full history of what she did that day from dawn to dusk, with excruciating detail provided about every little event. The police later arrest her when they find out that at 2:00 PM she was actually talking about the weather with her coworker Earl, and not her coworker Smith as she had claimed.
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  • Zig Zagged: ???
  • Averted: ???
  • Enforced: ???
  • Lampshaded: ???
  • Invoked: ???
  • Exploited: ???
  • Defied: ???
  • Discussed: ???
  • Conversed: ???

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