March 2026

Evidence handling documentation and tracking process

What is chain of custody?

Chain of custody is a continuous, documented record of evidence control from collection through courtroom presentation, showing no tampering or contamination. It logs each transfer’s who, what, when, where, and how to support admissibility. This article explains the steps, required documentation, and common breaks that can undermine a case. Chain of custody is a critical […]

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Forensic scientist examining evidence in laboratory

What is forensic evidence?

Forensic evidence is scientific evidence collected and analyzed for legal proceedings, commonly including DNA, fingerprints, trace materials, and digital data. It helps investigators reconstruct events and connect suspects, victims, and locations through measurable findings. This article explains what forensic evidence is, major types, how it’s handled, and why it matters in criminal cases. Forensic evidence

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Expert witness testifying in courtroom trial

What is expert testimony?

Expert testimony is evidence from a qualified specialist who can give opinion testimony based on training, education, or experience. It helps judges and juries understand technical or scientific issues beyond common knowledge. This article explains what expert testimony is, how experts are qualified, and how their opinions are used in court. Expert testimony plays a

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