What is the focus of crime scene investigation?

The primary focus of crime scene investigation is the collection and preservation of evidence. This process is crucial because the integrity of evidence directly impacts the validity of any conclusions drawn during an investigation. In a crime scene, various types of evidence—such as physical evidence, biological samples, and digital footprints—are gathered to establish what occurred, identify potential suspects, and support prosecution in court.

Effective crime scene investigation employs a systematic approach to ensure that evidence is collected carefully to avoid contamination or degradation, which can compromise an investigation. Proper preservation techniques, such as packaging evidence in appropriate materials and maintaining a strict chain of custody, are essential to support the reliability of the findings.

While other aspects such as suspect interrogation, traffic accident analysis, and witness interviews are important components of a broader investigation, they are not the primary focus of crime scene investigation itself. The emphasis on evidence collection and preservation is what distinguishes the crime scene investigative process and ensures it serves its purpose within the criminal justice system.