Police Sergeant Practice Exam 2025 – Complete Prep Guide

The primary purpose of a crime scene investigation is to collect evidence and establish the facts surrounding an incident. This fundamental process involves documenting the scene, gathering physical evidence, and carefully analyzing all available information to reconstruct the events that took place. Collecting evidence is crucial, as it includes any materials such as fingerprints, DNA, weapons, or objects that can provide information about the crime and the individuals involved. By establishing the facts, investigators can build a factual case that supports subsequent legal actions, ensuring a thorough understanding of what occurred.

While conducting interviews with witnesses, making arrests, and writing incident reports are important tasks within the broader scope of law enforcement and criminal justice, they are not the primary focus of a crime scene investigation. The decisive step of collecting evidence lays the groundwork for all further actions and decisions made in the legal process, making it the central objective of an effective crime scene investigation.