Which statement best describes the fruit of the poisonous tree doctrine?

• A. Evidence being excluded due to chain of custody issues
• B. Evidence being excluded due to lack of relevance
• C. Evidence being excluded due to improper documentation
• D. Evidence being excluded due to unconstitutional acts

Answer: (D)

The fruit of the poisonous tree doctrine means that if evidence is obtained through an unconstitutional act, such as an illegal search or seizure, not only that evidence but also any additional evidence that directly stems from that illegality is generally excluded from use in court. The idea is to prevent police misconduct by making illegal actions unusable in obtaining further proof. There are recognized exceptions where tainted evidence might still be admitted, such as when evidence is discovered through an independent lawful source, would have been discovered anyway (inevitable discovery), or the connection between the illegality and the evidence is sufficiently attenuated over time or through intervening events. The other options don’t describe this principle: issues like chain-of-custody problems affect integrity and authentication, lack of relevance concerns whether evidence is related to the case, and improper documentation relates to administrative handling rather than constitutional taint.