We adopted a beautiful Jack Russel 8 weeks ago and he's part of the family now. When we got him we were told where he was found by the dog warden and that he had been microchipped but the microchip hadn't been registered to the owner. The dog home had him for a week to give his old owner time to find him before we got him. Everything has been brilliant but the other day my mum (in her 80's and completely compus mentus) was walking him and van drove by her slowly then went around the village and passed her again. She had the feeling he was looking at the dog and had the feeling it was his past owner. when we got him the dogs home put our address on the microchip site that was already implanted in him, but I'm worried that his past owner will have his old microchip details they got when they bought him and will put those in on the Internet and find our address. If anyone can shed any light on how that works I'd be grateful to know whether our details can be accessed. Thanks.