2017年拉萨老板托运25公斤黄金，到家发现黄金变石头，真相不一般

Core Viewpoint - The article narrates a case of a significant theft where three gold traders discovered that the gold they purchased had been replaced with stones, leading to an investigation that uncovered a scheme involving airport personnel [1][6]. Group 1: Incident Overview - In May 2017, three gold traders, Chen Jianfang, Chen Liping, and Chen Jie, purchased over 25 kilograms of gold, which was later found to be replaced with heavy stones upon arrival [2][3]. - The total value of the lost gold was approximately 7 million yuan, prompting the traders to report the incident to the police immediately [3]. Group 2: Investigation Process - Initial suspicions pointed towards either the airport or the transportation route as potential points of tampering with the gold [4]. - The police initially suspected the traders might have staged the theft for insurance purposes, but their cooperation and the investigation ruled out this possibility [6][11]. - Surveillance footage from the airports showed no tampering until the investigation reached Gagong Airport, where critical camera malfunctions were noted on the day of the incident [7][8]. Group 3: Identification of Suspects - The investigation led to the identification of a suspect, Li Baoguo, a baggage handler at the airport, who had a gambling problem and a motive for theft [11][15]. - Li Baoguo and his accomplice, Liu Bo, were found to have conspired to replace the gold with stones, and both were arrested shortly after the investigation progressed [15][16].