Rowling's cousin to take lie detector test

Author JK Rowling's cousin Ben is so determined to prove he inspired her hit Harry Potter books, he's signed up to take a lie detector test on a new reality show.

Ben recently claimed he was "inseparable" from the mega-rich writer while he was growing up, and insists he's the basis for her famous schoolboy wizard character, debunking Rowling's claim she came up with the idea while stuck on a delayed train.