What is the purpose of tape-off or creating a perimeter or barrier?

• A. To prevent unauthorized entry and minimize contamination
• B. To improve lighting
• C. To provide shelter to inmates
• D. To expedite the investigation by interviewing more witnesses

Answer: (A)

The main idea is to secure the area by controlling access. Establishing tape-off or a perimeter focuses on preventing unauthorized entry and minimizing contamination of the scene. By limiting who can approach, you protect evidence from being touched or disturbed, maintain the integrity of the investigation, and reduce exposure to hazards for inmates and staff. This control also helps investigators document and collect evidence in an orderly, safe environment. Lighting improvements, shelter for inmates, or speeding up witness interviews aren’t the primary purposes of a perimeter, which is about preserving safety and the evidentiary value of the scene.