Having arrived in Dubai in december we were handed quite a lot of paperwork from the pet relocation company, which to be honest with you was filed until we had our visa's in place. It was then forgotten about.
However a conversation with 2 friends over the last 2 days prompted me to read through the paperwork and it is a requirement to register your pets with the municipality and for them to wear their tags all the time.
I called the local vets who said they had tags in stock. The tags cost AED 50 each. I had to record their chip number, date of vaccines and our details.
I asked the vet what was the worse that could happen and she replied 'they (the police) can take your animal from you and *draws finger across throat*