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生物信息锁定隐匿14年杀人嫌犯

2017-08-10 10:08:13   

人烟稀少的野外,一家小小的杂货店前,没有路灯,没有监控,也没有目击者,随后的一场大雨几乎把所有的犯罪证据都洗刷干净———这是14年前崇明“7·14”抢劫杀人案的犯罪现场情况。

“现场条件实在太差,除了一枚犯罪嫌疑人的生物信息,几乎没有任何线索。”时任刑侦大队副大队长的宋洪杰向记者介绍道。但正是凭这枚宝贵的生物信息,在现代信息技术的支持下,崇明警方最终于今年7月揭开了这宗尘封14年的命案之谜。

唯一线索是一枚生物信息

2003年7月14日20时许,崇明庙镇地区发生一起轰动一时的杀人案,年仅16岁的当地居民小顾被凶手残忍地割断颈动脉,因失血过多不幸身亡。

接到报警后,崇明公安立即赶到现场,但倾盆而至的暴雨让整个取证过程变得异常艰难。经过连夜细致勘查和检验分离,侦查人员勉强从现场遗留的大量血迹中,发现并提取了一枚疑似嫌疑人的生物信息。

“当时生物信息技术在中国才刚刚起步,数据库容量不是很大。我们进行了前科比对,但未能发现嫌疑人。”凶手没有前科,这让警方的调查更加无从下手。在地毯式排摸和大面积走访调查均无结果的情况下,警方只能将希望寄托在那唯一的一枚生物信息上。

生物信息成功比对嫌疑人

14年来,崇明公安始终没有放弃追凶,他们采集过千余名可疑人员的生物信息,并曾六次将嫌疑人信息录入全国公安机关相关数据库参与网上比对。终于,今年7月13日,崇明警方得到了市局刑侦总队的信息反馈:“7·14”杀人案中的生物信息在浙江省平湖市比对上了安徽籍嫌疑男子黄平。

“今年6月份开始,公安部组织了一个全国范围内的生物信息网上作战追讨专项行动,当我们再一次把这桩积年命案中获得的生物信息数据录入后,终于等来了全国库比对成功的结果。”刑侦大队的沈军表示,现场物证库与人员样本库原本是两个独立的数据系统,这次通过升级换代形成了一个网络系统,实现了全国的生物信息数据共享。

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