Police have charged a child psychiatrist with drug trafficking. Dr. Philip Alan Barker was arrested on Wednesday night at a downtown hotel in Calgary. The 70-year-old Barker was arrested during a police crackdown on frequent users of prostitutes and drugs. Acting police Staff Sgt. Butch Dickens says, "Mr. Barker's arrest culminated after he sold some narcotics to an undercover operator." Barker is a former professor at the University of Calgary and still works at the Alberta Childrens' Hospital. Barker will appear in court on February 28.