Rotherham sex abuse survivor Sammy Woodhouse is demanding a probe into how disgraced Tory Imran Ahmad Khan became an MP.
Khan, 48, quit his Wakefield seat 11 days ago after being convicted of groping a 15 year old boy at a party in January 2008.
He is due to be sentenced at Southwark Crown Court later this month and has been warned he could face prison. He intends to appeal.