对人体DNA甲基化水平进行检测发现，结合在DNA上的甲基团数量与年龄有关，因此，唾沫分析技术有望成为犯罪现场取证工具。
An analysis of a person's DNA methylation finds that the number of methyl groups attached to the DNA correlates with the person's age — making saliva analysis a possible CSI tool.
刑事鉴识科专家经常在犯罪现场实验室工作，分析dna，手印，武器以及其他犯罪证据，有时候他们也需要出庭作证。
Forensic scientists often work in crime scene LABS, analyzing DNA, fingerprints, weapons, and other evidence, and sometimes testifying in court.
DNA鉴定还被应用于侦破犯罪案件。从犯罪现场采集的DNA样本经分析鉴定，如果和嫌疑犯的 DNA结构一样，那么就可以证明该嫌疑犯是犯罪分子了。
DNA fingerprinting has also been used in criminal cases, with a match of a suspect's DNA with DNA from a crime scene being used to convict suspects.
在犯罪现场实地勘验中，侦查人员非常重视对现场上各种物质痕迹的收集，但往往忽视对现场心理痕迹的分析。
In crime scene investigation, investigators think much of gathering all kinds of material trace, but ignore analyzing mental traces.
尸检可以透露凶案现场的周边环境，重要线索也可从犯罪现场的血迹分析中得到。
A postmortem can shed some light on the circumstances surrounding a murder, and vital clues can also be gleaned from an analysis of bloodstains at the scene of the crime.
今天科学家一般可以在犯罪现场遗留的血液、唾液、毛发中分析出DNA。
Scientists today routinely analyze DNA in blood, saliva, or hair left behind at the scene of a crime.
分析犯罪现场的血迹范围、形态和分布，从而为出血的案件提供行为类型和出血机制的判断依据。
To analysis the scope, morphology and distribution of bloodstains so as to ascertain the bleeding type and behavior mechanisms in the cases.
分析犯罪现场的血迹范围、形态和分布，从而为出血的案件提供行为类型和出血机制的判断依据。
To analysis the scope, morphology and distribution of bloodstains so as to ascertain the bleeding type and behavior mechanisms in the cases.
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