There are a number of service branch civilian police agencies. I believe they all fall under an enabling statute authorizing the Department of Defense to establish police agencies. I worked for a short while at Wright Patterson Air Force Base in the 70s. My shoulder patch and badge said Department of Defense Police but our chain of command was through the 2750th Air Police Wing and we were issued ID cards saying Police Officer, Wright Patterson AFB.

I knew others who were civilians but wore the uniform insignia of the Branch of Service during that time. Most were at a location with a lot of civilian employees.

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SWCA 3417 HF 642 NRA-TC