Foster mentions two categories, one primary and one secondary. Chief, he says it's the patrol of a police department, as we discuss in class, he says the backbone of the agency is the patrol. Secondary are what enters or follows the patrol, i.e. investigation and youth. The auxiliary or technical staff adds to the support function of the organizational structure. Staff responsibilities deal with recruiting new employees, having trainers train new ones, and providing new information to those already on the police force. The auxiliary support's responsibility is to deal with the jail, property, evidence, communications and documents, Foster said. Continue writing in large law enforcement agencies that strictly enforced policies and procedures exist and should be in all agencies. He describes policies as statements of expectations required by the agency, and procedures are how instructions are carried out step by step. He also writes that rules are about behaviors and regulations to focus on