CTU Security guards reported to the Director of the CTU Domestic Unit they work at. Guards controlled the entry and exit of CTU employees, guarded prisoners, and provided security. During a Lockdown, CTU Security Guards were responsible for preventing the entry or exit of anyone in the building and for eliminating or capturing all hostile persons in the building. CTU Security guards wore uniforms consisting of black slacks, a red/black or white shirt with the CTU logo, and a black duty belt. They were equipped with a radio, a handgun, and other law enforcement-related pieces of gear.