What are biological materials in crime scene processing?

Biological materials in crime scene processing are defined as substances that have human or animal origin. This includes a range of evidence such as blood, saliva, hair, and other bodily fluids. Identifying these materials is crucial in forensic investigations as they can provide significant information about the individuals involved in a crime and help establish connections to the scene or the actions that took place.

In the context of a crime scene, biological materials are important for DNA analysis, which can lead to the identification of suspects or victims. They may also offer insights into the circumstances of the incident, such as the nature of injuries sustained during a violent crime or the presence of specific individuals at the scene. Understanding what constitutes biological materials is essential for law enforcement personnel when collecting and processing evidence to ensure accurate and thorough investigations.