How do you tell if a lottery ticket is genuine?

How do you tell if a lottery ticket is genuine? UK lottery operators Camelot are sifting through 'hundreds' of claims from people that a missing £33 million lottery ticket is theirs.

One alleged claimant reported a damaged ticket that had been in the wash - now many others have come forward to claim the prize too. So how do you find out whether one or any of these claimants are genuine?

Private investigator Mike LaCorte, director of Conflict International, spoke to BBC Radio 5 Live's Tony Livesey about how Camelot will go about tracking down the real winner.