Police Operations

Secondary Roads Unit

The Secondary Road Patrol’s primary purpose is to patrol the County’s Secondary Roads and perform activities which help reduce the threat of injury caused by traffic crashes on Secondary Roads. Some duties included in patrolling Secondary Roads are: investigating and reporting traffic crashes, taking appropriate action against violators of criminal laws, issuing verbal warnings and written citations for violations, providing emergency assistance, taking complaints and providing traffic safety information and education programs. These activities are endorsed by the Office of Highway Safety Planning (OHSP) which is a division of the Michigan Department of State Police.

Municipal Support Enforcement Unit

The Municipal Support Enforcement Unit (M.S.E.U.) provides traffic and commercial motor vehicle enforcement support to several of Wayne County’s municipalities under a local agreement. M.S.E.U. Officers focus on traffic enforcement and commercial vehicle enforcement within these Wayne County municipalities.

With a large focus on commercial vehicle enforcement, M.S.E.U. Officers provide safer roads by targeting unsafe and overweight commercial vehicles. The unit was designed to function as a self-supporting unit, thus not relying on General Fund Revenue to supplement it.

Helpful Links:

Michigan State Police Motor Carrier Division

Wayne County Frost Law Information

City of Detroit Frost Law Information

Michigan Overweight Law 257.722

Michigan Length/Size Law 257.719

Marine Unit

The Wayne County Sheriff’s Marine Unit is responsible for patrolling the waters in the County of Wayne, which includes Lake St. Clair, the Detroit River, Lake Erie and Belleville Lake. This includes 38 miles of international border (140 sq. miles of water).

The Marine Unit is staffed with deputies specially trained in marine law enforcement, search and rescue, underwater search and recovery operations. In rescue and recovery operations, divers may perform in limited or no visibility, cold water operations, ice and boat diving, river diving, various search patterns and many other areas of specialized police diving. The Marine Unit also works with other law enforcement agencies at the local, state and federal levels.

A vital function of the Marine Unit is to conduct boating safety programs for residents of the county. Instruction is provided at various public schools throughout the county as well as evening classes open to the general public.
For more information please contact:

4 Grosse Ile Parkway
Trenton, MI 48183
(734) 675-2660

Download Boating Safety Flyer DWLRC Summer BOATING Classes 2024

WCS Parks/Mounted Units

The Wayne County Sheriff’s Mounted Unit was established in 1978 in an effort to increase patrol presence along Edward Hines Parkway.

Edward Hines Parkway is one of the largest urban parks in the country. It stretches more than 23 miles through five different communities. Park rules and regulations are enforced by parks/mounted deputies on horseback and in patrol cars.

The Mounted Unit and deputies in patrol cars also patrol other Wayne County Parks most commonly known as Center Parks, which include: Bell Creek and Lola Valley in Redford Township, Koppernick Park in Canton, Venoy Dorsey Park in the City of Wayne and Inkster and Colonel Parks in the City of Inkster. In addition to patrolling the Center Parks, the Mounted Unit and deputies patrol Elizabeth Park located in the City of Trenton.

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