Proof of chain of custody is required for admissibility of DNA evidence.

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Chain of custody refers to the chronological documentation or paper trail that records the handling, transfer, and location of physical or electronic evidence. It is required to rule out the possibility of contamination, tampering, or mishandling of the evidence, and to establish the authenticity and reliability of the evidence in court. Without proper chain of custody documentation, the DNA evidence may be inadmissible in court.

Proof of Chain of Custody Is Required for Admissibility of DNA