Incident
Patrolman Sidney Dethloff was struck and killed by a vehicle while directing traffic at a collision at the intersection of Haggerty and Seven Mile Road. Patrolman Dethloff and his partner had responded to a family disturbance call on 7 Mile Road, east of Haggerty. While investigating, the officers were standing well off the road and on the shoulder side of a parked vehicle when an eastbound speeding vehicle veered off the roadway. Patrolman Dethloff's partner was able to jump clear by jumping on the hood of the parked car, but the vehicle struck Patrolman Dethloff. The male driver of the suspect vehicle had blacked out, causing the car to leave the roadway. It was suspected that the driver may have suffered a mild heart attack as three days later, he passed away from heart failure. Patrolman Dethloff had served with the Livonia Police Department for two years.
Survivors
He was survived by his wife and daughter.
In Our Keeping
- Permanent identifier
BO-US-MI-D9DD3632- Stewardship
- Maintained by NeuraWeb Global Inc.
- Added to badge.nw
- August 2, 2026
- Last updated
- August 2, 2026
Honored here by 1 sentinel - 1 tribute.
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Tributes
I never knew you. I am standing here anyway.
Patrolman Dethloff gave the Livonia Police Department 2 years.
Thank you for your service to the Livonia community. Gone but never to be forgotten.
Rest easy, Patrolman Dethloff.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Patrolman Sidney A. Dethloff is one of 1 officers lost to accidents in the line of duty across the full record of this memorial — 0% of all 97,756 officers honored here.
In MI, 229 of 718 officers were lost to accidents in the line of duty — 31.9% of this state's fallen. That is 31.9 percentage points above the national rate of 0%.
At Livonia Police Department, 1 of 4 officers on record were lost to accidents in the line of duty — 25% of this agency's fallen.
National Cause Distribution
How Accident compares to all causes of officer death in the memorial record. Sidney A. Dethloff's cause is highlighted.
How Sidney A. Dethloff Compares
When Accident Deaths Occur
Monthly distribution of Accident deaths across the full memorial record. Sidney A. Dethloff is highlighted in Jun.
Incident Location
Others Who Wore This Badge
3 officers from Livonia Police Department are honored on badge.nw.


