[Neil]

The offence is having a dog in a public place without collar and tag with the owners name and address on it. Phone number is not required but advisable. My dogs only have their collars off while in the bath. They have spare collars with tags while their collars dry after baths. Both are chipped with upto date details registered.

Tags are under £2 on eBay, if someone finds your dog with a phone number on its tag you could get it back straight away. I think the dog warden charges £70 to return your dog.