The State Attorney's Office Liaison Unit is staffed with 10 sworn law enforcement officers from the Jacksonville Sheriff's Office. Eight JSO detectives are sworn in as special investigators and two are uniformed police process servers.

These detectives and officers are appointed by the State Attorney's Office to assist the law enforcement needs of the Fourth Judicial Circuit of Florida (Clay, Duval, and Nassau Counties). These law enforcement officers currently work in separate divisions of the State Attorney's Office in the Circuit Court Division, County Court Division, Homicide/Gun Unit, Special Assault Unit, and Juvenile Division.