Interpol has launched a worldwide photo appeal to find a suspected paedophile.The global police body's first such campaign led to the arrest and trial of Canadian Christopher Neil in Thailand last year.Interpol posted a picture of a white-haired, balding man on its website, which are part of a series that show him sexually abusing boys aged between six and ten in southeast Asia.The identity, nationality and whereabouts of the man were not known.The first photos of him were found by police in Norway in March 2006 and so far about 800 images have been discovered, all featuring the same victims and locations.Interpol, based in the French city of Lyon, said it believes the photos were taken between April 2000 and May 2001 "and the man would look older today than he appeared in the pictures".Interpol Secretary General Ronald Noble said: "The law enforcement community around the world has done all it can to find this man who clearly presents a danger to young children."We are now asking the public to help identify this predator and protect other potential victims from abuse."The campaign is a repetition of the first such appeal last October, when Interpol unscrambled images of a suspect's "swirly face" on the internet.Neil, 32, was arrested and has since gone on trial in Thailand charged with molesting and distributing pornographic images of two Thai boys.If found guilty he faces up to 20 years in prison.