The Criminal Investigations Division (CID) is a multi task-orientated unit of highly trained and experienced criminal investigators.
The division's core values are to Identify Crime, Solve Crime, and Obtain Convictions that enhances the quality of life for the citizens and visitors to Milwaukee County utilizing a data-driven crime reduction strategy.
The units within the division include the General Investigations Unit (GIU), the Computer Crimes Unit (CCU), the Special Investigations Unit (SIU), the Background Investigations Unit (BIU), the Civil Process Unit (CPU), and the newly created Data Analysis-CompStat Unit (DACU).
The General Investigations Unit is responsible for investigating a variety of criminal activity such as violent crimes, warrant sweeps, weapon offenses, sexual assault, battery, drug arrests, sexual predators, sudden death, stolen vehicles, intimidation of witnesses, and graffiti / tagging. The unit also works closely with the other 18 municipal law enforcement agencies in the county providing primary and supplemental investigative services.
The Computer Crimes Unit continues to meet the technical requirements and computer skills for investigating 21st century crimes, to include identity theft, child pornography / enticement, Credit Card Fraud, Check Forgery, and E-mail Harassment. In addition, the unit has the ability to conduct forensic examinations on many electronic devices such as computers and cell phones.
The Special Investigations Unit investigates cases from the Attorney General, the District Attorney, the County Executive, County Board of Supervisors, Milwaukee County Department Heads, citizen groups or investigations deemed special in nature by the Sheriff or his designee. Confidentiality, professionalism, job knowledge and proper decorum are paramount in conducting these types of investigations, which are often sensitive and reflect directly on the Agency.
The Civil Process Unit CID is responsible for the service of a variety of civil process papers, which include temporary restraining orders, evictions, replevins, commitment orders and body attachments. The unit is also responsible for the transportation of subjects in other states (extraditions) back to Wisconsin who are wanted on felony charges in Wisconsin.
There are 6 non-sworn personnel assigned to the Background Investigations Unit. This unit is responsible to complete the background investigations on persons applying for positions within the Milwaukee County Sheriff's Office and other positions with Milwaukee County. This unit also completes background investigations for other government agencies county and statewide upon their request.
In addition, CID sworn personnel are assigned to full-time and part -time task force positions. These task forces include the US Marshals Office, the High Intensity Drug Trafficking Area (HIDTA), the Southeastern Terrorist Alert Center (STAC), the Alcoholic Tobacco and Firearms (ATF), the Federal Bureau of Investigation (F.B.I). Joint Terrorist Task Force (JTTF), the Cyber Crimes Task Force (CCTF), the Child Care Fraud Task Force, and the State Internet Crimes Against Children Task Force (ICAC).
CID personnel must achieve and maintain a high degree of proficiency and expertise, and be versatile in numerous disciplines and types of investigations. Detectives must maintain expert skills in interviewing, interrogation, surveillance, evidence preservation, and crime scene management.