The Cinnaminson Police Department is located on Manor Road near the township's municipal building and public library. In addition to a police chief and a lieutenant, there are five sergeants, 15 officers and two detectives. A detective sergeant and two detectives make up the township's detective bureau, which is on-call 24 hours a day. There's also a secretary and two records clerks in the department. Incident reports can be obtained within seven business days after the incident. There is also a township community policing bureau.