I was pulled over once by Denver bike cops on 16th street east of downtown - supposedly for running a red light. I informed him that I would happily take the ticket but the fact was I entered the intersection on a yellow after a left-turning truck yeilded the 'last one through before red' to me. He looked at me and asked me to ride safely.

That was my good experience with Denver bike cops. All my other experiences point to them being largely uninformed about riding bikes. This last winter I pulled up to two that were just entering downtown around 5:30am -- very dark. I was all lit up (front & rear lights, reflective jacket, etc) and one of the cops also had some lights. The other didn't have any; I asked the first to clarify what the laws were about bikes needing lights at night. She stated the law with a straight face & they biked away.

My other experiences with Denver bike cops: seeing them ride side by side in a bike lane impeding traffic; riding on flat tires; riding with items falling out of their unzipped saddle bags; spinning in first gear in the flats at about 150rpm; stopping at lights about 1.5 bike lengths into the intersection; etc.