What is "crime scene investigation"?

Crime scene investigation refers to the systematic process of collecting, preserving, and analyzing evidence from a location where a crime has taken place. This process is crucial because it helps establish the facts surrounding the crime and can lead to the identification of suspects and the conviction of offenders. Investigators gather various types of evidence, including physical evidence like fingerprints, DNA, and weapons, as well as digital evidence, photographs, and witness statements.

This option is distinct from the other choices, which address different aspects of law enforcement and the legal process. Interviewing witnesses focuses on gathering testimonies rather than collecting physical evidence. Preparing arrest warrants involves legal processes tied to law enforcement but does not involve the on-scene examination of evidence. Assessing liability in civil cases pertains to civil law and is not part of criminal investigation practices. Thus, option A accurately encapsulates the primary focus and importance of crime scene investigation.