Many re-enactment scenes for Homicide Hunter are shot on location in Knoxville, TN using real Knoxville Police Department officers standing in as actors. The vehicles, weapons, and equipment are the ones used by the Knoxville PD, but with "Colorado Springs" placed over the name.
In the opening montage, Lt. Kenda slips his automatic into its holster, but the hammer is cocked. - For an officer, that gun is supposed to be cocked when it's holstered. The error is you can see the safety is not engaged when the gun is holstered.