works of art, such as paintings, statues, or photographs have shown nude children, or nude children with nude adults. for most of this history, childhood nudity represented innocence, and could be shown anywhere. in recent years, showing nude children in photographs is seen by some as sexual. when photographs were taken to labs for processing, those taken by families showing small children naked were sometimes seen as child pornography by the police. when there is no sexual contact shown, charges have never been sustained. in may 2008, police in sydney, australia, raided an exhibition by the photographer bill henson. this exhibition showed images of naked adolescents. the raid was done on allegations of child pornography.