I'll provide a bit of background, so you understand the context. I have been a CHL holder in Texas since the law came into effect. In that entire time, I have had four contacts with police. Three were great, and one was strange-but-fine.
Two years ago, I completed the Peace Officers' Academy and became a Reserve Deputy Sheriff. I am a lead deputy in Patrol. As a reserve deputy, I have full police powers, but the pay isn't as good as the full time folks.
While working as a patrol deputy, I have had three interactions with Texas CHL holders:
1. I was running radar on a large interstate (speed limit 65 mph). A motorcycle passes me while doing 105 mph. I overtake, and when I turn on my lights, he hunkers down and hits the accelerator. I declare a pursuit, and stay on him at speeds of up to 140 mph. He gets scared, slows down, and eventually exits and stops at a light. After he refuses instructions to get off his bike, I pull him off, handcuff him, and search him. I find a Glock 23 in his back waistband. He tells me he's a CHL (and he is!). I take his gun (he got it back the next day). He is charged with Felony evasion and probably won't be able to own a gun for a while.
2. While running radar on a rural highway (speed limit 60 mph), a Mazda RX8 passes me at 100 mph in fairly heavy traffic. I overtake, turn my lights on, and he pulls over. Driver is a CHL. His wife is in the passenger seat. His two teenage sons are in the back seat. His six year old daughter is unsecured in the front between the seats (one too many people for the seats in an RX8). I solve their problem of 'too many people' by arresting him for reckless, and turning the vehicle over to his wife.
3. While I'm at dinner, a local business owner comes into the restaurant and tells me there is an older man at his nail parlor with a little girl, and they are acting strange. He called the police (responding police were from City PD), but they had not arrived yet, and he was concerned that they might leave. I go over, detain them, and question. It all seems very suspicious. Older man is a CHL holder. 10-yoa little girl is neighbor's daughter. They seemed to me to be going out on an overnight 'date'. City PD responds, contacts mother, who seems surprised girl is with older man. Girl discloses that older man 'likes her too much' and touches her...
So, as you can see, the CHL holders I've met are not too impressive a bunch. But I'm still a big supporter of CHL's, and I'm looking forward to having a good experience with one some day.
Our sheriff is not a supporter of CHL's, but the consensus of the rank-and-file in our Department is positive. Of all the officers I know (~100 from various departments small to large), I'd say 80% are supporters of CHL.
My advise to CHL holders is use common sense in everything you do, including (but not limited to!) carrying your firearm. Note that none of these CHL holders committed gun crimes.
Regards
--Dan