Which doctrine extends the illegality of search or interrogation to taint other evidence?

Which doctrine extends the illegality of search or interrogation to taint other evidence?

• A. Exclusionary rule
• B. Miranda rule
• C. Hearsay rule
• D. Fruit of the poisonous tree doctrine

Answer: (D)

The Fruit of the Poisonous Tree doctrine extends the illegality of an unlawful search or interrogation to taint other evidence. It sits under the umbrella of the exclusionary rule and aims to deter police misconduct by making not just the initial illegally obtained material, but also any additional evidence gathered as a result of that illegality, generally inadmissible in court. In practice, if the police obtain evidence through an illegal act, the prosecution may be barred from using that evidence and often any derivative evidence that flows from it. There are ways this taint can be overcome, such as when the taint is sufficiently attenuated by time or intervening steps, or when the evidence was obtained through an independent source unrelated to the illegal action, or when inevitable discovery would have occurred anyway. Other doctrines, like the Miranda rule, address different protections, such as warnings before custodial interrogation, and the hearsay rule governs the admissibility of out-of-court statements; the fruit doctrine specifically targets the chain of causation from the illegal act to related evidence.

The Fruit of the Poisonous Tree doctrine extends the illegality of an unlawful search or interrogation to taint other evidence. It sits under the umbrella of the exclusionary rule and aims to deter police misconduct by making not just the initial illegally obtained material, but also any additional evidence gathered as a result of that illegality, generally inadmissible in court. In practice, if the police obtain evidence through an illegal act, the prosecution may be barred from using that evidence and often any derivative evidence that flows from it. There are ways this taint can be overcome, such as when the taint is sufficiently attenuated by time or intervening steps, or when the evidence was obtained through an independent source unrelated to the illegal action, or when inevitable discovery would have occurred anyway. Other doctrines, like the Miranda rule, address different protections, such as warnings before custodial interrogation, and the hearsay rule governs the admissibility of out-of-court statements; the fruit doctrine specifically targets the chain of causation from the illegal act to related evidence.