scientific methods of solving crimes, that involve examining objects or substances related to a crime

Using cutting-edge forensics, they can analyze material samples for traces of suspicious chemicals. 使用先进的取证技术，他们可以分析材料样本中可疑化学物质的痕迹。

a forensics expert 一名取证鉴识专家

objects or substances related to a crime, that are scientifically examined to help find out who committed it and how

The forensics clearly pointed to his guilt. 现场取证结果明确显示他有犯罪嫌疑。