TV To Catch A Paedophile - Season 1 Episode 1 : Part 1 of 2 To Catch A Paedophile - Season 1 Episode 1 : Part 1 of 2 /10 by 0 users Child protection expert and former policeman, Mark Williams-Thomas, follows officers in the Metropolitan Police's Paedophile Unit. Detectives go into internet chat rooms posing as teenage girls and investigate the startling number of paedophiles trawling for images and sex. The programme reveals the disturbing exchanges and tricks that the men use to entice children to show nude pictures of themselves and meet up for sex. Details Casts Posters Images Title To Catch A Paedophile - Season 1 Episode 1 : Part 1 of 2 Alternative Titles First Air Date 2009-09-23 Last Air Date 2009-09-22 Number of Episodes 2 Number of Seasons 1 Genres Documentary, Networks ITV1, Casts Plot Keywords , Episodes List To Catch A Paedophile Season 1 :Episode 1 Part 1 of 2 Part 1 of 2 2009-09-22 To Catch A Paedophile Season 1 :Episode 2 Part 2 Part 2 1970-01-01