现在罪犯的作案手法日益隐蔽和狡猾,这就给侦破工作带来了很大困难.但道高一尺,魔高一丈,美国警方借助DNA遗传指纹,破获了许多疑案悬案。因为DNA指纹分析技术十分正确可靠,所以它现在已获得美国绝大部分州法院的认可,允许作为指控罪犯的有力证据。警方利用此技术,就能从罪犯在作案现场留下的极细微的血迹、精液、唾沫、头发甚至皮屑破译出他的DNA指纹密码,并以此为线索挖出隐藏在深处的罪犯。 At present, criminals are increasingly secretive and cunning tactics, which have brought great difficulties to the detection work.But the height of the road, magic height, the United States police using DNA genetic fingerprints, uncovered many suspects. Because DNA fingerprinting technology is very accurate and reliable, it is now approved by most state courts in the United States, allowing strong evidence of allegations of criminals. By using this technology, the police can decipher the DNA fingerprints and passwords of the DNA fingerprints secreted by the blood, semen, saliva, hair and even dander left by criminals at the crime scene.