从某种意义上讲,外来人口犯罪已成为左右天津刑事案件发案升幅的重要因素之一,对社会治安构成了严重的威胁。如何及时、有效地打击和预防外来人口犯罪,是各级公安机关面临的一项极其紧迫的任务。本文拟从刑事侦察的角度,在分析天津市外来人口犯罪重化情况的基础上,对打击和控制外来人口犯罪问题谈谈一孔之见。外来人口犯罪重化情况1、犯罪案件、成员比重逐年增多据统计,通过案件侦破,天津市抓获的刑事犯罪分子中外来人口所占比重,1993年为25%,1994年为28%,1995年1-4月为31%,两年多增加了6个百分点。在破获的刑事案件中,外来人口犯罪案件比重,1993年为12%,1994年为25%,1995年1-4月仍为25%(1994年1-4月为21.4%),两年多上升了13个百分点。从这两项数字可以看出外来人口在天津犯罪的趋势和严重性。2.案件质量升高,暴力程度加剧过去,外来人口犯罪一般胆小,多是顺手牵羊、小偷小摸,很少使用暴力手段进行严重犯罪。现在,外来人口中的刑事犯罪 In a sense, the crime of migrant population has become one of the important factors in the increase of the criminal cases in Tianjin, which poses a serious threat to social order. How to crack down on and prevent crimes committed by non-native population in a timely and effective manner is an extremely urgent task for the public security organs at all levels. This article intends to talk about the issue of cracking down on and controlling the crime of immigrant population based on the analysis of the criminality remolding of the migrant population in Tianjin from the angle of criminal reconnaissance. Criminal cases, the proportion of members increased year by year According to statistics, through the detection of cases, the proportion of migrant criminals captured in Tianjin accounted for 25% in 1993, 28% in 1994, in 1995 January-April was 31%, an increase of more than two years 6 percentage points. In the criminal cases uncovered, the proportion of crimes committed by migrants was 12% in 1993, 25% in 1994 and 25% in January-April 1995 (21.4% in January-April 1994). Over two years Rose 13 percentage points. Judging from these two figures, we can see the trends and seriousness of the crimes committed by migrants in Tianjin. 2. The quality of the cases is getting higher and the level of violence is aggravating In the past, the crimes committed by migrant workers were generally timid. Mostly they were flirtatious and petty, and they seldom used violent means to commit serious crimes. Now, criminal offenses of migrants