There is an organisation set up over here by a TV presenter and his daughter after her two Yorkies were stolen and luckily returned to her due to the media coverage. They are trying to bring in that all vets scan pets that are bought into clinics for the first time. It's not a very well known organisation yet but it's getting there. Me and Mum met Debbie, (the owner of the Yorkies) at Crufts this year where she held a stand to bring awareness to the organisation.
They have an online petition and letters you can print off and send to your local vets, etc.
http://www.vetsgetscanning.co.uk/