The Executive Security Brach (ESB) is a special unit of the Colorado State Patrol that has existed since the State Patrol was created in 1935. The unit consists of troopers, civilian security guards and a command center workforce. The ESB provides 24-hour security at the State Capitol complex and at the Governor's Residence with transportation and security for the Governor and the First Family. In addition, the unit provides protection and security services to the secretary of state, attorney general and state treasurer.
Because ESB has unique responsibilities beyond those of typical State Patrol personnel, ESB troopers have received specialized training in dignitary protection, bomb detection, and critical incident management from agencies such as the FBI, the US State Department and the US Secret Service.