Abstract: In incident investigations such as fires and explosions, the analysis of thermal damage traces on fibers plays a pivotal role in identifying suspects, establishing facts, reconstructing scenes, and determining causation. This paper reviews domestic and international research on thermal damage to human hair and textile fibers, highlighting their significance in forensic investigations. Additionally, the paper offers a prospective outlook on future research directions, aiming to provide valuable references for relevant studies and to guide fire and explosion investigations

Key words: forensic science, accident investigation, fiber evidence, thermal damage, trace examination