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Investigative Services : Home
Sheriff's Office & Corrections Center
640 River St.
Allegan, MI 49010
Phone: (269) 673-0500
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Investigative Services 




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Investigative Services is led by Lt. Brett Ensfield. Reporting to Lt. Ensfield are three general case detectives who are each assigned to sections of the county, one detective assigned to sex crimes county-wide, and one detective assigned to the WEMET drug crimes task force. 

Detectives may be reached by calling the Sheriff’s Office at 269.673.0500, and dialing the extension listed below.

Detective Chris Haverdink ext. 4452 or
Townships West of 48th St: Fillmore, Laketown, Saugatuck, Manlius, Ganges, Clyde, Casco, and
Detective Craig Gardiner ext. 4454 or
Central Townships: Overisel, Salem, Heath, Monterey, Valley, Allegan, Cheshire, and
Detective Mark Lytle ext. 4286 or
Townships East of 24th St: Dorr, Leighton, Wayland, Hopkins, Martin, Watson, Gun Plain, and
Detective Martin Mendell ext. 4457 or
CSC Detective. All sex crimes occurring anywhere in Allegan County
One Detective assigned to WeMET Undercover drug position Undercover officer works with multi-agency drug unit which handles drug crimes throughout Allegan, Muskegon and Ottawa Counties

Brett Ensfield
 Lt. Brett Ensfield 

Allegan County Sheriff's
Investigative Services
Phone: 269.673.0500, ext. 4355 or
Direct Dial: 269.686.5335


Investigative Services