A crime scene investigator is trained to identify, collect, preserve, and process which of the following at a crime scene?

• A. Evidence
• B. Suspects
• C. Confessions
• D. Documents

Answer: (A)

Identifying, collecting, preserving, and processing evidence at a crime scene is the core task. Evidence is any item or data that can prove facts about what happened, who was involved, or how the crime occurred—things like fingerprints, fibers, DNA, tool marks, or digital data. The investigator’s job is to spot these items, collect them carefully to avoid contamination, package and label them properly, and document their condition and exact location so lab analysts can test them and so they can be used in court. Suspects and confessions may come into play later, but at the scene the focus is on the physical and material evidence that can be examined and validated. Documents can be part of the evidence, yet the overall emphasis is on the evidence itself.