Clues Caught on Tape Key to Child Porn Cases

For the investigators seeking to identify child pornography victims, every little bit of information – from the designer of the clothing worn in the pictures to the type of wallpaper in the background – helps, law enforcement experts told ABCNEWS.com. "We look at the house and the building and determine whether [the tape was filmed] outside," said Detective Constable Bill McGarry, an image analyst at the child exploitation section of the sex crimes unit at the Toronto Police Department. "We...Full Story