北京市公安分局利用北票市人民法院刑事审判卷宗侦破一起盗窃案。２００２年初，北京市公安局公交分局预审科宋志强警官在侦破一起盗窃案时，犯罪分子顽固不化，拒不交待自然情况，又无固定居住处所，给公安机关侦破工作带来一定难度，至使此案无法向检察机关报捕，并多次退卷 Beijing Public Security Bureau made use of the criminal trial files of the People’s Court of Beipiao City to crack down on theft. At the beginning of 2002, when police officer Song Zhiqiang, a pre-trial division of the Public Transport Bureau of Beijing Public Security Bureau, cracked a theft case, the criminals were stubborn, refusing to explain the natural situation and did not have a permanent place to live, posing some difficulties for the public security organs to crack down on their work. The case can not report to the prosecutor arrested and repeatedly unwinding