Early in my career, Kemper Lakes had a hole in one prize, ensured by Lloyds of London. As it happened, someone won it and the next morning we got a call from Lloyds to confirm the details of the hole. They wanted to know if it was shorter than advertised (luckily theirs was all water carry, so the tee couldn't be moved too far forward) if the hole was hard, etc. They seemed content with the answers from the golf course architect, but I suspect we were their second call as an independent backup source of info. As far as I know, that is the most they investigated, confirming the story's phrase of "light investigation."