A new department created by the Dallas school district to sniff out waste and abuse is cracking cases in administrative offices, classrooms – and even a school kitchen. There was the assistant principal who had students and teachers build a king-size bed for him in shop class. And the football coach who secretly had students sell donated T-shirts. And the cafeteria boss who investigators say stole hundreds of dollars worth of dessert cobblers from her school. Although the new investigative office isn't universally popular in the district, Superintendent Michael Hinojosa said he believes it is acting as a deterrent to wrongdoing.