Sexual assault cases related to unknown perpetrator: Almost 50% of the analyzed cases corresponded to serial offenders

As a collaborative effort in solving sexual assault cases where there is no suspect, the DNA profiles associated with 273 cases were analyzed. Such cases were submitted from different Criminal Investigation Units belonging to eight judicial departments of Buenos Aires Province. A single NN male profile was recovered from the evidences by differential lysis with DNA IQ System (Promega) and typing with IdentiFiler kit. Comparative analysis of the compiled DNA profiles showed that in 45% of the cases the evidence DNA profile matched in at least two unrelated cases. Associations between groups of unsolved cases provided a valuable tool in aiding law enforcement investigations.     

男子性犯罪者个性特征研究

为探讨个性素质因素与男子性犯罪行为的关系，本文采用ＭＭＰＩ分别对９３名强奸犯、２０名奸幼犯、５１名流氓犯和４８名盗窃犯进行了测定，对此四种类型罪犯的个性心理测量结果进行了比较。结果表明：其中强奸犯、奸幼犯的Ｐｄ、Ｐａ、Ｓｃ等量表分数都较正常人高；而且Ｐａ、Ｓｃ量表分数也较流氓犯、盗窃犯高。在ＭＭＰＩ剖析图上构成４—８型或４—６—８型模式，且附加量表Ｒｅ呈明显低分。说明男子性犯罪中强奸犯具有乏社交、判断力差、过分敏感、行为星冲动性的个性特征。