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What Every Law Enforcement Officer Should Know About DNA Evidence

First Responding Officers

Chain of Custody: Procedures

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Images of police chain of custody evidence handling
National Institute of Justice (NIJ) (see reuse policy).

Procedures for establishing a chain of custody of evidence include listing all persons who have had physical possession of the evidence from the time it was recovered at the scene, processed and examined, to the time the evidence was presented in court.

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