Wang in Lianyungang, Jiangsu Province went to the local police station with a bag of crystal sugar and asked police officer Zhang Chi to help him get a refund of 1,400 yuan ($206) from Zhou, his drug dealer.
He saying he bought crystal meth from Zhou but than found out it was just white rock sugar.
The police soon caught the seller, surnamed Zhou, who admitted that he had sold sugar to Wang. It weighs 1.59 grams and a forensic examination confirmed it was not crystal meth.
Wang was then tested positive for meth and admitted he had taken the drug the previous day. The police have put Wang and Zhou under detention.