A former top prosecutor in Maine has pleaded not guilty to child pornography charges. James Cameron is charged with 16 counts of transporting, receiving, and possessing child pornography. The 46-year-old man is a former Assistant Attorney General in Augusta. He now lives in Westland Michigan. Cameron was arrested on Tuesday after a federal grand jury in Bangor indicted him. A Maine State Police investigation revealed that between July 2006 and January 2008 Cameron allegedly uploaded child pornography to a Yahoo photo album under multiple screen names. The investigation also showed he was sending digital images online.