Criminal Procedure Essentials: Rights and Rules
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Evidence Exclusion in Criminal Cases
The Exclusionary Rule prohibits the introduction of evidence obtained in violation of a defendant's constitutional rights in a criminal trial. This applies to violations of the Fourth, Fifth, and Sixth Amendments.
Fruit of the Poisonous Tree Doctrine
Evidence derived from illegal government conduct is generally excluded. However, there are key exceptions:
- Independent Source: Evidence discovered through a source separate from the illegal conduct.
- Inevitable Discovery: Evidence that would have been discovered lawfully regardless of the illegal conduct.
- Defendant's Intervening Acts: The defendant's own actions break the causal chain between the illegal conduct and the evidence.
This doctrine does not apply to:
- Grand