Which term refers to the isolation of an incident site to prevent unauthorized access?

The term that refers to the isolation of an incident site to prevent unauthorized access is scene control. This concept is crucial in any emergency situation to ensure the safety of first responders, preserve evidence, and manage the flow of information. Scene control involves establishing a perimeter around the incident site, which helps to keep unauthorized individuals away and allows for a more organized response from emergency personnel.

Maintaining scene control is essential for several reasons. It protects the integrity of the scene for any subsequent investigations, minimizes the risk of interference from bystanders, and ensures that only trained professionals can enter areas where hazards may exist. This can be critical in incidents involving hazardous materials, crime scenes, or medical emergencies where crowd control is necessary.

The other options do not specifically address the act of isolating an incident site. Scene assessment focuses on evaluating the situation and gathering information; public safety pertains to the overall well-being of the community during emergencies; and emergency response encompasses the broader actions taken to address and manage an incident. Thus, scene control is the most accurate term for the isolation process described in the question.