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.

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。

youdao

In some of America's courts this has, to the fury of the forensic scientists involved, led to previously admissible forensic techniques notably handwriting and hair analysis (the examination of features like the colour and microscopic structure of human hair found at the scene of the crime) in particular being deemed unscientific.

ECONOMIST: Whose body of evidence?