Which action helps preserve the integrity of a scene by limiting entry?

• A. Controlling scene access
• B. Opening to public
• C. Encouraging crowds
• D. None

Answer: (A)

Controlling who can enter the scene is essential because it directly protects the scene from contamination or disruption. By establishing a perimeter and restricting access to only essential personnel, you maintain the original layout, positions of items, and evidence as it was found. This supports an accurate timeline and reliable documentation, which are crucial for investigators and the courts. Opening the area to the public or allowing crowds to gather introduces strangers, movements, and disturbances that can contaminate evidence, alter conditions, and create safety risks. Keeping entry limited helps preserve the integrity of the investigation and the evidence gathered.