Hi , looking for some advice. A friend told me yesterday she has re homed a dog , not sure if any money involved. She then says the people she had it off had only had the dog 3 weeks but it wasn’t working out . Dog is 16 months old ish .The dogs chip is still registered to its first owners. Alarm bells are ringing in my head I’ve told her to get the dog scanned to trace the owner. If it does turn out the dog is not stolen how does she register the chip in her name ?