The bloodstain is not only the murder case scene trace, is also matter witness, and has the important crime evidence value and the appraisal function.

血迹既是杀人案件现场的痕迹，又是物证，具有非常重要的犯罪证据价值和鉴定作用。

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The detective investigating the murder case examined the body, inspected the scene of the crime, and scrutinized the weapon for clues.

正在调查这一谋杀案的侦探检查了尸体，察看了犯罪现场，并仔细检查了凶器以寻找线索。

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Major Mead said the cartridge case found at the scene of the murder had crimp marks on it similar to those found in the Soviet Union and its satellite countries.

BBC: Dando defence concludes case