Milwaukee County Sheriff's Office
The Milwaukee County Sheriff's Office is the principal law enforcement agency that serves Milwaukee County, Wisconsin. It provides law enforcement services for the county's road system, freeways in the county, the Milwaukee County Courthouse, the Milwaukee County Jail in downtown Milwaukee and House of Corrections in rural Franklin, the county-owned General Mitchell International Airport, and the Milwaukee County Parks system, including much of the Milwaukee lakefront. At one time it was the largest sheriff's department in the state of Wisconsin, with about 720 deputy sheriffs. By 2015 the agency had reduced the number of sworn personnel to approximately 225.
The current sheriff is Earnell Lucas, who was sworn on January 7, 2019. Lucas was elected as a Democrat.
Bureaus and divisions
Administrative Services Bureau
The Administrative Services Bureau contains the Open Records Division, Central Records Unit, Media Relations, Clerical Staff, Traffic Desk and Special Events.Detention Bureau
The Detention Bureau handles inmate health, transportation, food services, inmate housing, property, jail records, visiting, classification, central booking records and warrants.Police Services Bureau
In addition to countywide patrol services; the Police Services Bureau oversees the Airport Division, Explosive Ordnance Disposal/Bomb Unit, Drug Enforcement, Civil Process Unit, TEU, Motorcycle Unit and K9 Operations.Additionally, the Courts Division has been incorporated into the Police Services Bureau and provides Bailiff services for the largest court system in the State of Wisconsin.
Fallen officers
Since the establishment of the Milwaukee County Sheriff's Office, 12 officers have died in the line of duty. For 11 years, the Milwaukee County Law Enforcement Executives Association, in conjunction with the Milwaukee County Sheriff’s Office and the Milwaukee Police Department, has hosted the Greater Milwaukee Law Enforcement Memorial Ceremony annually in May. The event, which honors Milwaukee County law enforcement officers killed in the line of duty, is part of the National Law Enforcement Memorial Week.| Officer | Date of Death | Details |
| Deputy Sheriff Sergio Aleman | Automobile accident | |
| Deputy Sheriff Sung Hui Bang | Aircraft accident | |
| Deputy Sheriff I Ralph Edward Zylka | Aircraft accident | |
| Deputy Sheriff I David Michael Demos | Vehicular assault | |
| Deputy Sheriff I John Valentine Trandel | Heart attack | |
| Deputy Sheriff Wallace N. Schilling | Gunfire | |
| Deputy Sheriff Lloyd Rhodes | Automobile accident | |
| Deputy Sheriff Al Beckemeier | Motorcycle accident | |
| Deputy Sheriff Howard F. Grundman | Motorcycle accident | |
| Deputy Sheriff George Pazik | Motorcycle accident | |
| Deputy Sheriff Frank X. Heup | Motorcycle accident | |
| Deputy Sheriff William Wank | Gunfire |
Equipment
Weapons and other duty equipment- Glock 22 GEN 4.40 S&W- standard issue pistol.
- Glock 27.40 S&W- generally used depending on assignment and by high-ranking members of the agency.
- Colt AR-15- different variants are issued by the agency depending on unit. The Colt RO603 is used for normal patrol deputies.
- Taser- Used by patrol deputies as well as corrections officers.
- Pepper Spray- used by most deputies in jail and on patrol.
- Chevrolet Tahoe- patrol SUV
- Dodge Charger- patrol car
- Chevrolet Impala- patrol car