During the size-up phase, which group should be kept aside?

• A. Bystanders and Witnesses
• B. Suspects
• C. Media Personnel
• D. Responders

Answer: (A)

During the size-up phase, the priority is to secure the scene and gather information without interference. Bystanders and witnesses should be kept aside because they can create hazards, contaminate evidence, or crowd the area, making it harder for responders to assess conditions accurately. Keeping them at a safe distance allows responders to observe, establish control zones, and plan actions without distractions, and it enables interviewing witnesses later in a controlled environment once the scene is secured. Suspects need to be contained to prevent harm and preserve evidence, media personnel should be directed to a designated area to avoid obstructing operations while still keeping the public informed, and responders must remain actively involved in managing the incident.