The Criminal Investigations Division consists of a Division Commander, Investigation Sergeants, General Investigator, and Juvenile Investigator.

The Division functions are to investigate and record all criminal offenses within the city, arrest those people involved in committing these crimes and recover stolen property. The Division is also responsible for the initial storage and records of all confiscated property, and filing of all criminal cases with the District Attorney's Office.

The Juvenile Investigator, investigates all juvenile cases, and works closely with school administrators.

Investigators are specially trained officers skilled in crime scene investigations, interviewing, and many other areas applicable to specific types of crimes.

Investigators are normally available during regular business hours to answer questions or provide assistance to those who has been a victim of a crime. An Investigator is on call 24 hours a day, 7 days a week to respond to emergency investigative needs.