When a police officer testifies about a crime or an investigation, the most important thing that he brings to court is his profession's collective reputation for integrity. Note that I said that he brings his profession's reputation for integrity, not his own reputation.
If a police officer testifies that red is blue or green is orange, his testimony is very likely going to be taken at face value by judges and juries because he supposedly is an independent and trained observer with no ax to grind. It doesn't matter to him or the jury if his testimony is totally fouled up because he was too lazy, distracted, or whatever to actually make the observations that he wants to testify to. He will show up and say something, and as a professional witness, he will say it with conviction.
Like any other profession, there are good cops and bad cops, industrious cops and lazy cops, cops with integrity and cops with none. My experience through life has been that most fall into the former of each of these categories, but there are exceptions.
Sometime before the turn of the decade, I was stopped by one member of the Mayor's motorcycle gang. I had made a left turn at a stop light in front of him. The light had just turned and everyone was starting from a dead stop, so he was never in any danger. I just hadn't seen him because the car in front of him had blocked my view and because of him, the car behind him didn't seem in any hurry to enter the intersection.
Of course, I got stopped, and we had a long pleasant conversation. When the officer handed me the ticket, it was for a cracked windshield, not the moving violation I deserved. He asked me why I had treated him so politely. I owned a retail store and my interactions with the police up to that time had been quite professional. I had been in the wrong this time and I knew it, so why wouldn't I treat him politely?
It only takes one bad cop and one bad experience to change that attitude, and that happened in 2005. I had a burglary problem that a certain cop didn't want to investigate. He took some very obnoxious steps to avoid doing an investigation, steps which call his own integrity into question. A private citizen has very little power to encourage a police department to do its job, and no power to force it to do its job. The US Supreme Court has said as much.
Earlier, I exercised the one power that a private citizen has against a cop who compromises his integrity to avoid doing his job. I wrote a letter to the local DA offering to testify before any jury hearing testimony from this particular Colorado Springs cop just how far he would go to avoid doing his job. Discovery rules require the DA to share my letter with any defense attorney where this cop might appear.
Never again will a prosecutor be able to wrap this cop in the mantle of the collective reputation for integrity that the police have in general. Instead, prosecutors have to weigh whether they want their case damaged by this cop's individual actions.
I was able to do that because in 2005 I documented in letter format what was happening, and regardless of the outcome of any investigation the letter(s) might have instigated, I can now say that everything I am willing to testify to is "contemporaneously documented." I doubt that any investigation took place, which is even more damning.
If readers learn nothing else from what I write, they should learn that contemporaneous documentation in the form of letters is very hard to discount, even if... especially if you receive no reply.
If this cop is close enough to retirement, the mayor will likely allow him to finish out his career cutting four inch pieces of 20 guage wire and bending them into paper clips.
If anyone wonders why I want the city's public safety sales tax repealed, it is because the Colorado Springs Mayor and Police Department can't seem to prioritize burglary investigation higher than revenue generation. We didn't get more policing with the Public Safety Sales Tax. We got more buildings.
Note: I had to chuckle, yesterday, when I saw the form that the labor union opposition had taken to three amendments. It was a cop on donuts who wanted to be protected from folks like me. I immediately modified the voters guide to refer to this essay and noted that I had named one file in my letter to the DA "Have another donut, officer."