When noticing smoke on patrol, what is the FIRST action a security guard should take?

The most appropriate first action a security guard should take upon noticing smoke is to pull the closest fire alarm. This action is crucial because activating the fire alarm alerts building occupants to evacuate immediately, enhancing their safety. The alarm also notifies the fire department and emergency services, ensuring they respond promptly to potential danger.

By pulling the fire alarm, the security guard initiates an organized evacuation, which helps prevent panic and allows for a safer exit from the premises. While determining the origin of the smoke or calling the fire department may also be important aspects of responding to a fire, they should occur after ensuring that the alarm has been raised and that people are evacuated. In emergency situations, prioritizing the safety of individuals on-site is vital, and activating the fire alarm is the fastest way to achieve that.