Roll of Honor
Incident
Trooper Swain was killed in an automobile accident while driving an unmarked radar unit on a road feeding Route 66. A truck pulled out in front of his path and failed to gain speed. In an attempt to avoid striking the truck Trooper Swain swerved into the opposite lane but struck a vehicle head-on. Both he and the driver of the other vehicle were killed. Trooper Swain's partner was injured in the accident. Trooper Swain had served with the Illinois State Police for nine years and was assigned to District 9. He was a veteran of both WWII and the Korean War.
Survivors
Trooper Swain was survived by his wife and four children.
In Our Keeping
- Permanent identifier
BO-US-IL-E9607382- Stewardship
- Maintained by NeuraWeb Global Inc.
- Added to badge.nw
- April 2, 2026
- Last updated
- July 23, 2026
Honored here by 1 sentinel - 1 tribute.
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Tributes
I served 1985 to 1993. You served too, before the badge - different uniform, same idea. You go where you are sent and you do not get to pick the call.
Trooper Swain gave the Illinois State Police 9 years.
Thank you for your service to the people of Illinois, and for your service before it. Gone but never to be forgotten.
Rest easy, brother.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Military Service
Clarence Uen Swain served in the United States military before joining law enforcement. Full service record available on salute.nw.
Trooper Clarence Uen Swain is one of 10,088 officers lost to accidents in the line of duty across the full record of this memorial — 31% of all 32,508 officers honored here.
In IL, 354 of 1,318 officers were lost to accidents in the line of duty — 26.9% of this state's fallen. That is 4.1 percentage points below the national rate of 31%.
At Illinois State Police, 49 of 67 officers on record were lost to accidents in the line of duty — 73.1% of this agency's fallen.
National Cause Distribution
How Accident compares to all causes of officer death in the memorial record. Clarence Uen Swain's cause is highlighted.
How Clarence Uen Swain Compares
When Accident Deaths Occur
Monthly distribution of Accident deaths across the full memorial record. Clarence Uen Swain is highlighted in Aug.
Incident Location
Others Who Wore This Badge
66 officers from Illinois State Police are honored on badge.nw. Showing the 16 most recent.
