Police Reports in Michigan
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About Michigan Police Reports
Important Information
Michigan's UD-10 system is comprehensive with detailed coding
Processing Details
Electronic filing mandatory for most agencies
Additional Notes
Updated code sheets from 2010
Available Report Types
- Form UD10
- State Police Reports
- Local Reports
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Michigan Police Reports, Accident Reports and Crash Reports: Unpacking Form UD‑10
Overview: Michigan’s crash‑reporting system
Michigan, home to the Motor City and a vast network of interstates, rural roads and city streets, requires law‑enforcement officers to complete an official police report whenever a reportable traffic collision occurs. The standard accident report in the state is the Michigan Traffic Crash Report (Form UD‑10). This form, coupled with code sheets revised in 1998 and 2010【705959244594143†L140-L141】, ensures that every crash is documented comprehensively and consistently. From the snow‑covered roads of the Upper Peninsula to the busy freeways of Detroit, Form UD‑10 provides the foundation for insurance claims, legal processes and roadway safety research. Understanding the structure of the UD‑10 and its role in Michigan’s transportation safety efforts can help drivers, insurers and policy makers navigate the aftermath of a collision and improve traffic safety statewide.
Anatomy of Form UD‑10
The UD‑10 is designed to capture detailed information without overwhelming officers at the scene. The top section includes administrative information: the report number, investigating agency, officer’s badge number, crash date and time, and location. Location fields require the county, city or township, road name or highway number, mile marker or cross street, and whether the crash occurred at an intersection or between intersections. Officers also indicate whether the crash involved a fatality, personal injury, property damage only, or a hit‑and‑run.
Driver and vehicle details
For each vehicle involved, the report records the driver’s name, address, date of birth, sex, driver’s license number and state, license class (including commercial or motorcycle endorsements) and any restrictions. Officers note whether the driver was wearing a seat belt and whether they were tested for alcohol or drugs. The vehicle section captures the year, make, model, body style, color, vehicle identification number (VIN), license plate number and state. Additional check boxes indicate whether the vehicle was a commercial motor vehicle, emergency vehicle, bus, taxi, or farm implement. Because Michigan is a hub for automobile manufacturing and shipping, the report requires extra details when a commercial vehicle is involved, prompting the officer to complete a supplemental form capturing motor carrier information, cargo body type, gross vehicle weight rating (GVWR), hazardous materials involvement and hours of service.
Occupant and non‑motorist information
The UD‑10 includes an occupant table that documents every person in the vehicles and any non‑motorists (pedestrians, cyclists, scooter riders). For each person, officers record seat position using a seating diagram, seat belt or helmet use, airbag deployment, ejection status, injury severity and whether the person was transported to a medical facility. Additional fields capture age, sex and whether the person was impaired by alcohol or drugs. Non‑motorist entries record the type of non‑motorist, their direction of travel and whether they were in a crosswalk or on a designated path. Michigan’s emphasis on pedestrian and bicycle safety—particularly in cities like Ann Arbor and Traverse City—makes these data points critical for evaluating safety programs.
Environmental conditions and roadway characteristics
Michigan’s crash report dedicates space to the crash environment. Officers document road surface conditions (dry, wet, snow, ice, slush, water, sand/mud), weather (clear, cloudy, rain, snow, sleet, hail, fog), lighting (daylight, dawn/dusk, dark with/without street lights) and roadway alignment (straight, curve, hill). They also record whether the crash occurred on an interstate, U.S. highway, state road or local street, and whether the road was divided, undivided or one‑way. Traffic control devices—stop signs, yield signs, traffic signals, flashing beacons—are noted along with their operational status. Because Michigan experiences severe winter weather, the report includes fields for road treatment (salted, sanded, plowed) and whether winter maintenance was in progress. Officers indicate whether the crash occurred in a work zone and whether signs or flaggers were present.
Collision sequence and contributing factors
Form UD‑10 asks officers to identify the first harmful event and subsequent events. Options include collision with another motor vehicle, collision with a pedestrian or cyclist, collision with a fixed object (tree, utility pole, guardrail, building), collision with an animal, overturning, jackknife, fire/explosion, cargo spill or submersion. The manner of collision describes how vehicles collided—rear‑end, head‑on, angle, sideswipe same direction, sideswipe opposite direction, backing, turning, passing, etc. The report uses numeric codes from the code sheets to record contributing factors such as driver behavior (speeding, following too closely, failed to yield, improper passing, improper turning, ran a red light or stop sign, distracted driving, alcohol or drug impairment, fatigue), vehicle defects (brake failure, tire blowout, steering failure), and environmental factors (glare, debris, potholes, animals). Officers may list multiple factors per vehicle, providing a comprehensive view of the causes.
Utilizing crash reports to enhance Michigan’s roadway safety
Data from police reports, accident reports and crash reports feed into the Michigan Traffic Crash Facts (MTCF) database and are shared with federal agencies like the National Highway Traffic Safety Administration (NHTSA). Analysts use these data to identify trends—such as increases in deer‑related crashes during the fall or spikes in alcohol‑related crashes around holidays—and to evaluate the effectiveness of safety programs like seat belt enforcement and distracted‑driving campaigns. The data guide MDOT in prioritizing engineering projects, such as adding rumble strips on rural highways, redesigning dangerous intersections or improving winter maintenance practices. Commercial vehicle crash data support Federal Motor Carrier Safety Administration (FMCSA) oversight and help target inspections and enforcement.
What to do after a crash in Michigan
If you’re involved in a collision, remain at the scene, check for injuries and call 911. Cooperate with law‑enforcement officers as they complete the police report, providing accurate information about yourself, your vehicle and your insurance. Exchange contact and insurance details with other drivers and gather contact information from witnesses. Take photos of the vehicles, road conditions and any visible injuries if it is safe to do so. Once the accident report is filed, you can obtain a copy through the Michigan State Police or the local police department. You’ll need the report number from Form UD‑10 to retrieve the document. The crash report will be essential for insurance claims and may be used in legal proceedings.
Conclusion
The Michigan Traffic Crash Report (Form UD‑10), combined with detailed code sheets【705959244594143†L140-L141】, provides a comprehensive framework for documenting motor‑vehicle collisions across the state. By standardizing police reports, accident reports and crash reports, Michigan ensures that critical data are captured uniformly, from Detroit’s busy highways to the rural roads of the Upper Peninsula. These data support insurance resolution, legal accountability and public‑safety efforts. Whether you’re a driver, insurer, attorney or policy maker, understanding the structure and purpose of the UD‑10 helps you navigate the aftermath of a crash and contributes to safer roads throughout Michigan.
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All 740 Cities Available
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Detroit
County: Wayne
Population: 3.716.929
ZIP Codes: 48209, 48208, 48202...
Grand Rapids
County: Kent
Population: 611.480
ZIP Codes: 49546, 49506, 49505...
Lansing
County: Ingham
Population: 318.001
ZIP Codes: 48912, 48933, 48915...
Ann Arbor
County: Washtenaw
Population: 314.647
ZIP Codes: 48103, 48104, 48105...
Flint
County: Genesee
Population: 291.688
ZIP Codes: 48502, 48504, 48505...
Kalamazoo
County: Kalamazoo
Population: 204.408
ZIP Codes: 49001, 49006, 49007...
Muskegon
County: Muskegon
Population: 162.458
ZIP Codes: 49442, 49443, 49440...
Warren
County: Macomb
Population: 138.128
ZIP Codes: 48092, 48093, 48091...
Sterling Heights
County: Macomb
Population: 133.473
ZIP Codes: 48310, 48313, 48312...
Saginaw
County: Saginaw
Population: 117.412
ZIP Codes: 48602, 48607, 48601...
Dearborn
County: Wayne
Population: 107.846
ZIP Codes: 48128, 48120, 48126...
Livonia
County: Wayne
Population: 94.058
ZIP Codes: 48152, 48150, 48154...
Port Huron
County: St. Clair
Population: 85.051
ZIP Codes: 48060, 48061
Farmington Hills
County: Oakland
Population: 83.316
ZIP Codes: 48336, 48335, 48334...
Jackson
County: Jackson
Population: 81.058
ZIP Codes: 49201, 49202, 49203
Wyoming
County: Kent
Population: 76.865
ZIP Codes: 49509, 49418, 49519...
Rochester Hills
County: Oakland
Population: 76.086
ZIP Codes: 48306, 48307, 48309
Southfield
County: Oakland
Population: 76.025
ZIP Codes: 48033, 48034, 48075...
Battle Creek
County: Calhoun
Population: 73.448
ZIP Codes: 49015, 49037, 49016
Dearborn Heights
County: Wayne
Population: 62.099
ZIP Codes: 48127, 48125
Pontiac
County: Oakland
Population: 61.914
ZIP Codes: 48342, 48340, 48341...
St. Clair Shores
County: Macomb
Population: 58.287
ZIP Codes: 48081, 48080, 48082...
Royal Oak
County: Oakland
Population: 57.880
ZIP Codes: 48067, 48073, 48068
Kentwood
County: Kent
Population: 54.114
ZIP Codes: 49512, 49548, 49546...
Portage
County: Kalamazoo
Population: 49.015
ZIP Codes: 49002, 49024, 49081
East Lansing
County: Ingham
Population: 45.394
ZIP Codes: 48823, 48825, 48824...
Midland
County: Midland
Population: 42.461
ZIP Codes: 48642, 48640, 48667...
Forest Hills
County: Kent
Population: 28.494
ZIP Codes: 49301, 49546, 49355...
Madison Heights
County: Oakland
Population: 28.411
ZIP Codes: 48071
Norton Shores
County: Muskegon
Population: 25.000
ZIP Codes: 49441, 49444
Auburn Hills
County: Oakland
Population: 24.911
ZIP Codes: 48326, 48321
Mount Pleasant
County: Isabella
Population: 21.420
ZIP Codes: 48858, 48859
Grosse Pointe Woods
County: Wayne
Population: 16.177
ZIP Codes: 48236
Mount Clemens
County: Macomb
Population: 15.567
ZIP Codes: 48043, 48046
Traverse City
County: Grand Traverse
Population: 15.491
ZIP Codes: 49686, 49684
Harper Woods
County: Wayne
Population: 15.205
ZIP Codes: 48225, 48265
Sault Ste. Marie
County: Chippewa
Population: 13.373
ZIP Codes: 49783
Farmington
County: Oakland
Population: 11.472
ZIP Codes: 48336, 48335, 48332...
Grosse Pointe Park
County: Wayne
Population: 11.394
ZIP Codes: 48230
East Grand Rapids
County: Kent
Population: 11.394
ZIP Codes: 49506
Grand Haven
County: Ottawa
Population: 10.966
ZIP Codes: 49417, 49456
Grosse Pointe Farms
County: Wayne
Population: 9.957
ZIP Codes: 48236
Muskegon Heights
County: Muskegon
Population: 9.902
ZIP Codes: 49444
Benton Harbor
County: Berrien
Population: 9.023
ZIP Codes: 49022, 49023
Whitmore Lake
County: Washtenaw
Population: 8.083
ZIP Codes: 48189, 48178
Grand Blanc
County: Genesee
Population: 7.995
ZIP Codes: 48439, 48480
Huntington Woods
County: Oakland
Population: 6.322
ZIP Codes: 48070
Houghton Lake
County: Roscommon
Population: 5.761
ZIP Codes: 48651, 48630, 48629
Comstock Northwest
County: Kalamazoo
Population: 5.190
ZIP Codes: 49048
Frankenmuth
County: Saginaw
Population: 5.108
ZIP Codes: 48734, 48787
Michigan Center
County: Jackson
Population: 4.623
ZIP Codes: 49254, 49201, 49203
Vandercook Lake
County: Jackson
Population: 4.434
ZIP Codes: 49201, 49203
Bloomfield Hills
County: Oakland
Population: 4.412
ZIP Codes: 48304, 48303
Roosevelt Park
County: Muskegon
Population: 4.148
ZIP Codes: 49441
North Muskegon
County: Muskegon
Population: 4.089
ZIP Codes: 49445
Lathrup Village
County: Oakland
Population: 4.049
ZIP Codes: 48076
Paw Paw Lake
County: Berrien
Population: 3.794
ZIP Codes: 49098, 49038
Level Park-Oak Park
County: Calhoun
Population: 3.367
ZIP Codes: 49017, 49037
Skidway Lake
County: Ogemaw
Population: 2.800
ZIP Codes: 48610, 48756
West Ishpeming
County: Marquette
Population: 2.714
ZIP Codes: 49849
Trowbridge Park
County: Marquette
Population: 2.271
ZIP Codes: 49855
South Gull Lake
County: Kalamazoo
Population: 2.145
ZIP Codes: 49083, 49060
Manitou Beach-Devils Lake
County: Lenawee
Population: 2.062
ZIP Codes: 49253
Berrien Springs
County: Berrien
Population: 2.043
ZIP Codes: 49103
Wacousta
County: Clinton
Population: 1.686
ZIP Codes: 48822, 48837, 48820
Shorewood-Tower Hills-Harbert
County: Berrien
Population: 1.468
ZIP Codes: 49115, 49125
Greilickville
County: Leelanau
Population: 1.296
ZIP Codes: 49621, 49684
Lakes of the North
County: Antrim
Population: 1.076
ZIP Codes: 49730, 49659
Chums Corner
County: Grand Traverse
Population: 1.012
ZIP Codes: 49685
Lake Michigan Beach
County: Berrien
Population: 914
ZIP Codes: 49038
Maple Rapids
County: Clinton
Population: 724
ZIP Codes: 48835, 48853
Presque Isle Harbor
County: Presque Isle
Population: 722
ZIP Codes: 49777
Mackinac Island
County: Mackinac
Population: 663
ZIP Codes: 49757
Robin Glen-Indiantown
County: Saginaw
Population: 545
ZIP Codes: 48601
Interlochen
County: Grand Traverse
Population: 538
ZIP Codes: 49643, 49637
Canada Creek Ranch
County: Montmorency
Population: 328
ZIP Codes: 49709
Breedsville
County: Van Buren
Population: 315
ZIP Codes: 49056, 49027
De Tour Village
County: Chippewa
Population: 231
ZIP Codes: 49725
Crystal Mountain
County: Benzie
Population: 120
ZIP Codes: 49683
Lake Gogebic
County: Ontonagon
Population: 113
ZIP Codes: 49947, 49910
Crystal Downs Country Club
County: Benzie
Population: 61
ZIP Codes: 49635
Showing top 20 cities by population. All 740 cities have dedicated pages.