Chicago/Illinois Security Guard PERC Practice Exam

Cordonning off the scene of an emergency is primarily done to control unauthorized access. This is to ensure that only authorized personnel are allowed to enter the area in order to maintain safety and security. Options A and C may also be important reasons, but they are not the most important reason as controlling access is essential in preventing further harm and ensuring efficient handling of the emergency. Option D is incorrect as it suggests that the security guard's main objective is to stay busy, which is not the case in an emergency situation.