Which test samples are collected as evidence in legal proceedings and require special procedures to prevent tampering?

Question

08-12-2024
Biology

College

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Which test samples are collected as evidence in legal proceedings and require special procedures to prevent tampering?

Answer :

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Piyu67 Piyu67 · Answer 1 · 2023-08-25T13:27:49-04:00

Test samples like blood, DNA, and drug evidence require strict chain of custody procedures to prevent tampering and ensure integrity from collection to courtroom presentation.

Here are some of the key types:

Biological Samples: Forensic scientists analyze DNA from hair, semen, saliva, and blood, comparing samples to criminal databases. Strict protocols during collection, storage, and analysis prevent contamination.
Documents and Handwriting Samples: These are analyzed for authenticity and can be critical in cases of forgery or fraud. Ensuring the chain of custody is crucial to avoid tampering.
Firearms and Gunshot Residue: These are examined to determine their use in a crime. Proper handling and documentation are essential to maintain the integrity of this evidence.
Digital Evidence: This includes data from computers, smartphones, and other electronic devices. Special software and procedures are used to retrieve and preserve this data.

Maintaining chain of custody involves documenting every handler and storage conditions to preserve evidence integrity, ensuring it remains untampered and admissible in court.