Most councils have dog wardens.
Micro chipping is important and useful imho, and it isn't just the scumbags that don't chip dogs, there are plenty of dog owners with nothing but good intentions who end up with issues relating from not having a dog chipped, this will help the huge swathes of stupid people out there who seem to be missing the all important common sense gene.
Miss Scandal deals regularly with issues that would be easily managed if people had their dogs chipped from the start.