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Exclusionary rule

Definition

A rule that evidence obtained in violation of constitutional or statutory search-and-seizure requirements cannot be used at trial. Applied strictly and automatically in the United States; applied as a discretionary remedy under PACE s.78 in England and Wales; not routinely applied in India under the BSA.

Related terms

Admissibility
Whether a piece of evidence is permitted to be placed before the fact-finder at all. Admissibility is a threshold question, decided by...
Bharatiya Sakshya Adhiniyam 2023 (BSA)
India's current evidence statute, which replaced the Indian Evidence Act 1872. Section 63 of the BSA governs electronic records and requires a...
Chain of custody
The documented chronological record of who collected, handled, transferred, and examined a piece of evidence. For digital evidence, chain of custody includes...
Federal Rules of Evidence (FRE)
The rules governing the admission of evidence in US federal courts, adopted in 1975 and regularly amended. Rule 401 defines relevance; Rule...
Fruit of the poisonous tree
A US doctrine extending the exclusionary rule: not only is unlawfully obtained evidence itself excluded, but any further evidence discovered as a...
Plain-view doctrine
A rule permitting an officer who is lawfully present in a location to seize evidence whose incriminating character is immediately apparent, without...
Probable cause / reasonable grounds
The standard of suspicion required before a warrant may issue or a warrantless search may occur. In US law, probable cause requires...
Probative value
The strength of the evidence's tendency to prove or disprove a fact in issue. High probative value means the evidence substantially changes...
Relevance
The logical quality of evidence that makes a fact in dispute more or less probable. Under FRE Rule 401, evidence is relevant...
Search warrant
A judicial order authorising officers to enter and search a specified place and seize specified items. In most systems it must describe...

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