My dogs have tags on there collars and are microchipped too! I keep all there information up to date! We use our cell numbers on their collars and my in-laws cell number for a back up number so if lost, we should be able to be contacted within the hour to come bail them out! Our pups have never been to doggie jail and I hope to God they never do!! We had a case here that a guys dog ran off one day, on a Saturday, he tried to go to the shelter, it was after hours, closed on sunday, monday, then there was a holiday, so closed again, then on the 5th day he goes right after work, gets there 1/2 hour before they close, they would not give him the dog until he had proof that it was his, he told them he would be back the next day after work, they said ok, he went back the next day after work to find out they put his dog to sleep that morning, the 5 day hold for a stray was up, they will not hold for a maybe!!!