The notice to the court says prosecutors will also introduce two video recordings from May 30, 2012, that show Shirley and another uniformed officer in what appears to be a booking room. The nature of the discussion on one video was not revealed. Prosecutors say the other tape has no audio.
The transcript, meanwhile, is from a sentencing hearing that former U.S. District Judge Craig Broadwater was holding in a separate case.
Shirley, a lieutenant with 23 years of service at the time, was testifying for prosecutors when he was questioned about his dealings with a man named Scott Rind over a piece of furniture that Rind had allegedly refinished and sold, knowing it belonged to Shirley.
Shirley testified that his wife, Debbie, had cheated on him with Rind years earlier.
"I was working one day, and I drove up on them and caught them in the act,'' he testified. "I shot at him one time, and that was it.''
An attorney then asked if he typically shoots people who are sleeping with his wife while he's on duty.
"Well, I had never been faced with that before, but I did that time,'' Shirley responded. "I don't typically, no.''
Shirley and his wife later divorced.