Duties and Responsibilities: Security of the starship/station and its personnel is paramount. For this reason, the security officer is responsible for internal security. This can range from security for visiting diplomats to counter-insurgency.
External Security - During away team missions, personnel are vulnerable to attack. For this reason, the security officer is responsible for providing security for officers awawy from the starship/station. He is responsible for securing and maintaining safety for the ship and its crew, from both internal and external threats, and is usually an integral member of most away teams.
Security officers may also function as damage control officers, when required, or perform the duties of Tactical Officers as needed. They report directly to the Chief Security Officer, or to the Commanding Officer or Executive Officer if the CSecO is not available.