法医老曾曾经是我的同事。上世纪90年代初,我和他在青藏高原上藏族自治州公安局一起工作过5年。藏族自治州平均海拔4200米以上,交通困难,氧气稀少,经济落后,工作条件相当差。他是刑侦科的法医,我在办公室工作,常有工作来往。我刚认识他时他顶多也就是50岁出头,满脸憔悴,说60岁也没人 Forensic medicine used to be my colleague. In the early 1990s, I worked with him in the Tibetan Autonomous Prefecture Public Security Bureau on the Tibetan Plateau for five years. Tibetan autonomous prefectures have an average altitude of more than 4,200 meters above sea level, with traffic difficulties, scarce oxygen, and backward economy. Their working conditions are rather poor. He is a forensic detective, I work in the office, often working from time to time. When I first got acquainted with him, he was in his early 50s, haggard, and said nobody was 60