I've been pulled over 4 times since I got my CHL. Three times for speeding, one time for making a right turn into the middle lane. I've always presented my DL and CHL even though on 2 of those occasions I was not carrying. So far, I haven't received a ticket. I can't say my CHL or me presenting it had anything to do with not getting tickets, but I'll keep using this method until it stops working.