Which field of biotechnology is used for criminal identification through hair analysis?

The field of biotechnology that focuses on criminal identification through hair analysis is medical forensics. This discipline applies biological and biochemical methodologies to legal contexts, aiding in the investigation of crimes. Medical forensics encompasses a range of techniques, including DNA analysis, toxicology, and various forms of evidence examination such as hair and body fluid analysis.

In the context of criminal identification, examining hair samples can help establish a connection between a suspect and a crime scene or victim, especially when DNA can be extracted from the hair. This application is significant in forensic science, where accurate identification and collecting evidence are crucial for solving crimes and ensuring justice.

The other fields mentioned do not specifically focus on criminal identification. Medical engineering tends to relate more to the development of medical devices or technology used in healthcare. Environmental biotechnology applies biological processes for environmental purposes, such as waste management and pollution control. Agricultural biotechnology deals with improving plants and crops for food production, which does not involve forensic analysis.