The seller and the buyer will still be registered with a name and address on Ebay though , Ebay will still have their details ?

So even if the boat is sold , Plod can still catch the thief surely ?

Provided you have a crime number and can prove that you own the boat , they go round and nick the seller , and then pop round to the buyer and take the boat back.

If you have been paid out by your insurance company , the boat becomes theirs , if you weren't insured , the boat comes back to you .

Why would the police need to do it within seven days ?

If the buyer of your boat fails to co-operate , they will nick him for receiving stolen goods surely ? It's still your boat , regardless of how many times it has been sold on ...

The point is , Ebay still have the peoples details, so it wouldn't take Clouseau to track them down.