Forensic biology is a branch of science that applies biological principles to legal investigations. It involves the analysis of biological evidence, such as blood, hair, and other bodily fluids, to help solve crimes. Forensic biologists work closely with law enforcement to identify victims, determine causes of death, and link suspects to crime scenes. This field also includes the study of DNA evidence, which can provide crucial information about an individual's identity. Techniques like DNA profiling and microscopy are commonly used to examine samples. Forensic biology plays a vital role in the criminal justice system by providing objective scientific data.