What Is Criminal Discovery?

By Christine Burke · Published 2026-06-01

The short answer

Criminal discovery is the set of materials the prosecution shares with the defense — police reports, witness statements, lab results, recordings, and more. Reviewing it carefully is how the defense understands the evidence and identifies what may be missing or inconsistent.

What discovery usually includes

Police and supplemental reports, arrest records, affidavits and warrants, dispatch and CAD logs, body-camera and interview transcripts, lab and forensic reports, property inventories, and court filings.

Why it matters

The case against a defendant lives in these documents. Understanding them is the foundation for every defense decision.

How rules vary

What must be produced, and when, depends on jurisdiction and the stage of the case. An attorney can explain the specific rules that apply.

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DigitalPI™ is an AI-assisted research and organization tool. It is not a law firm, attorney, or substitute for a licensed investigator. It does not provide legal advice or determine guilt or innocence. All generated findings should be independently verified.