As a security officer, upon arriving at an incident scene, your primary responsibility is to secure the scene and guard it until law enforcement officers arrive. You are not required, nor are you legally authorized, to do anything else. Lessons in this course will deal with topics, such as processing a crime scene, collecting and preserving evidence, and interviewing witnesses, which are the responsibility of law enforcement officers. Topics like these will increase your knowledge and understanding of the incident scene and help you understand the process of law enforcement officers; you should not attempt to perform these activities at a crime scene unless asked to assist by law enforcement officers. Remember, you are only required to secure the scene and stand guard.