When Evidence is Actually Excluded
Violation of the Fourth Amendment does not result in the automatic exclusion of evidence. Exclusion requires:
Exclusionary Rule
When an individual with standing claims that evidence obtained as a direct or derivative result of an unreasonable search or seizure is inadmissible.
Purpose of the Exclusionary Rule?
The exclusionary rule is aimed at deterrence of constitutional violations. It is not a remedy for those whose rights have been violated.
Fruit of Poisonous Tree Doctrine
In addition to excluding all evidence that has been illegally obtained, any additional evidence acquired directly or indirectly from the illegal arrest, search, or seizure, must also be excluded. But remember that standing is still required (evidence cannot grow out of a constitutional violation against someone else).
Fruit of Poisonous Tree: Miranda Violations
The fruit of the poisonous tree doctrine is generally inapplicable to Miranda violations.
Exceptions to Fruit of the Poisonous Tree Doctrine
Independent Evidence
Evidence obtained from a source independent of the original illegality.
Inevitable Discovery
Exception where P admit that although evidence has been obtained through the Ds poisonous tree, law enforcement would have inevitable discovered the evidence through a different, independent source. However the inevitable discovery must have already been set in motion before the constitutional violation.
Attenuation
When the obtaining of the evidence is sufficiently attenuated from the constitutional violation. The attenuation exception turns on a combination of the flagrancy of the violation and the distance between violation and obtaining of evidence. Factors supporting attenuation include:
Balancing Approach to the Exclusionary Rule
The courts see that the only benefit of the exclusionary rule is to prevent future violations by law enforcement officers. Thus courts will balance the impact on deterrence v. impact of exclusion (setting potential criminals free).
Applicability of the Exclusionary Rule: Context in Which the Evidence Is Used
The exclusionary rule precludes only the use of suppressed evidence in Ps case-in-chief. The rule does not apply to:
Challenging Warrants
Remember that a bad warrant is not enough for exclusion. Pursuant to the good-faith exception, the defendant must also show that police acted in bad faith when they obtained or relied on the defective warrant.
Good Faith Exception
Evidence obtained pursuant to an invalid warrant will not be excluded if a reasonably well-trained officer would have believed that the warrant was valid. This exception has been extended to ordinary police negligence but not gross or systemic negligence.
Exceptions to Good Faith Exception
Suppression Hearing
During a trial, a D has a right to hearing at which time the judge determines the admissibility of the evidence out of the jury’s presence.
BOP at a Suppression Hearing
It is the government’s burden to establish admissibility of the evidence by a preponderance.
Ds Testimony at the Suppression Hearing
May not be used against him at trial on the substantive issue of guilt (but could likely be used for impeachment).
Effect of Admitting Illegally Obtained Evidence
Admitting illegally obtained evidence constitutes reversible error unless, the error is harmless. BOP is on goverment to prove BRD that the error did not contribute to a conviction.