I got stopped with a road block the other day and couldn't find my insurance card. I live in Alabama and we have to show proof of insurance, tag receipt, and driver license. When I couldn't find my proof of insurance the officer asked me to pull over to the side and let him know when I found it. I had the previous 3 cards but couldn't find the current insurance card. Knowing I had insurance, I let him know I just couldn't find it. He decided to write me a ticket for this. Thats fine and I definitely understand this. When he came to the car he felt my tires and said I needed some tires. My tires are pretty slick in the center but have a decent amount of tread on the sides. I told him "I know". When coming back to my car I found out he had written me a warning for my tires and I needed some new ones. I currently have Nitto 555R's with about 8,000 miles on them. I'm not upset about the warning since he could have written me a ticket I guess but I was just wondering what the law was about this in Alabama. Is there a requirement of a certain tread left on your tires? Anyways, after he gave me the tickets/warning, he told me "Awesome looking car man!" haha. I currently have some Mickey Thompson et street bias plys waiting on me at the tire shop. Also ordered a set of Nitto 555 for the back with a set of deep dish 03 Cobra wheels to mount the MT's on. This should take care of the issue but I was just wondering for future dealings. Thanks for the help!