we had the officer who had 60 pounds of deer sausage taken from the freezer. reporter: so frustrated officers did what they do best, set up a hidden camera sting. and just watch as one of their own, officer kevin yang, takes a monster energy drink with a detective s initials written on it. three days later someone s sandwich. four days later another monster. apparently, it was so good he came back the next day for yet another. when confronted, yang told detectives he was just cleaning out a dirty fridge. a lot of times we clean up the community refrigerator like once a week. everything you don t take by friday or certain date, everything gets thrown out. which we don t do here. reporter: yang was in court this afternoon to face theft charges. he s been suspended for 30 days. and when he gets back to work, his co-workers are sure to remind him, there s no such thing as a free lunch. ryan owens, abc news, dallas. and in the interest of full journalistic disclosure, that actuall