The Supreme Court will be back in action next week, and will hear a case about the future of the exclusionary rule when it hears the arguments of Utah v. Strieff on February 22nd. The specific question is whether evidence seized incident to arrest on a minor traffic warrant, discovered during a concededly unconstitutional detention, is inadmissible under the “attenuation” exception to the exclusionary rule.
Breaking the Chain of Events
Evidence seized after an illegal search or detention may be admitted under three exceptions to the exclusionary rule:
- (1) the independent source exception,
- (2) the inevitable discovery exception,
- and (3) the attenuation exception.
The attenuation exception applies where the police engaged in unlawful conduct, but the unlawful conduct was not the proximate cause by which the police obtained the evidence, because of an intervening circumstance breaking the causal chain. Under the attenuation exception, the intervening act is one that was made voluntarily by the defendant, such as a confession or consent to search given after illegal police action. The defendant’s voluntary act is sufficiently independent to break the legal connection to the primary violation, and therefor the evidence will not be excluded.