That's the first thing the Police check after the license and drug and alcohol roadside tests ,they almost always run their paws over the tyres to check thread depth if not correct they will defect your car, bike,truck or what ever , it's an easy kill for them and a PITA for you, new tyre and getting the defect removed by an Authorised Person , the Police in NSW have an on board Number Plate Recognition System in their cars that gives out details on any car it flags as unregistered or reported stolen' or a person of interest as the registered owner ,"Big Brother is Watching"