Peter Grimsdale has worked as both a commissioning editor and producer for BBC, Channel 4, Five and Sky Atlantic on a wide range of factual and features programmes. His credits include Crimewatch, Big Brother, Dispatches and most recently The Men Who Made Us Fat for BBC 2. He is also a thriller writer, his first, Perfect Night was read on Radio 4 and his most recent, Battlefield 3, was a collaboration with Andy McNab.