Who is responsible for crime scene supervision until the Investigative Unit arrives?

• A. Junior officer
• B. Senior officer present
• C. On-site investigator
• D. Crime scene technician

Answer: (B)

The senior officer present at the crime scene holds the responsibility for supervision until the Investigative Unit arrives. This is crucial as the senior officer has the training and authority to ensure that the scene is secured, preserved, and protected from contamination or alteration. Their experience allows them to make immediate decisions regarding evidence collection and management while coordinating with first responders.

While junior officers may assist or provide initial assessments, they do not have the same level of authority or responsibility. On-site investigators and crime scene technicians arrive later and rely on the initial handling by the senior officer to ensure that the integrity of the scene has been maintained for further investigation. The senior officer's position is vital in establishing a proper chain of command and maintaining order at the crime scene.