What is one key guideline that security personnel must follow at an incident scene?

At an incident scene, a critical guideline for security personnel is to avoid touching anything. This practice is essential for several reasons. First, preserving the integrity of the scene is vital for any subsequent investigation. By not disturbing potential evidence, security personnel help ensure that investigators can gather accurate information about what happened. Touching or moving items could inadvertently alter or destroy evidence, making it more difficult to ascertain the sequence of events or identify involved parties.

Moreover, not touching anything helps maintain safety, as the situation may be hazardous. There might be sharp objects, hazardous materials, or unstable structures that could pose a risk. Emphasizing the importance of this guideline reflects the principles of professionalism and responsibility that security personnel must uphold in potentially volatile situations.