Establishes the responsibilities of department members who take individuals into custody. Webthe chicago police department’s (cpd) department directives system (dds) is the official repository for current cpd directives. This system is maintained by the research. Outlines the department policy regarding department directives, including when there is a change of command for the position of. Outlines the department policy regarding department directives, including when there is a change of command for the position of superintendent of police. Webpursuant to the authority vested in it by the statutes of the state of illinois and the ordinances of the city of chicago, the police board hereby publishes the following. Sets forth department policy regarding sworn members' and detention aides' use of force. Provides guidelines for the use of force. Webthe chicago police department’s (cpd) department directives system (dds) is the official repository for current cpd directives. This system is maintained by the research.