- 保安大队 bǎo'āndàduì peace preservation corpsA security or peace preservation unit responsible for maintaining public order, managing emergencies, and traffic control.
- 保安警察大队 bǎo'ānjǐngchádàduì peace preservation corpspublic security police brigade or peace preservation corps responsible for maintaining order and internal security
- 督察大队 dūchádàduì supervision brigadeinspection or supervision unit, especially an internal affairs brigade within the Chinese police or military forces