Forensic Biology

Forensic biology is the application of biology to law enforcement.It includes the subdisciplines of Forensic anthropology, Forensic botany, Forensic entomology, Forensic odontology and various DNA or protein based techniques.
Applications
Forensic biology has been used to prove a suspect was at a crime scene, identify illegal products from endangered species solve crimes by matching crime scene evidence to suspects, investigate airplane bird strikes, and investigate bird collisions with wind turbines.
Evidence transfer and collection
Biological specimens can be used to make linkages (for example, person-person, person-other physical evidence, and person-crime scene). In general, biological evidence can be transferred by direct deposit or by secondary transfer.
Blood, semen, body tissue, bone, hair, urine, and saliva can be transferred to an individual's body or clothing, to an object, or to a crime scene by direct deposit. Once liquid biological materials are deposited, they adhere to the surface or the substratum and become stains. Nonfluid biological evidence, such as tissue or hair, can also be transferred by direct contact.
Blood, semen, tissue, hair, saliva, or urine also can be transferred to a person, object, or location through an
Very often, trace botanical evidence can link an object or suspect to the scene of a crime, as well as rule out a suspect or support an alibi. A plant's anatomy and its ecological requirements are in some cases species-specific; correct interpretation of botanical evidence can give vital information about a crime scene or the whereabouts of a suspect or victim. The use of botanical evidence in legal investigations is relatively recent. Today, forensic botany encompasses numerous subdisciplines of plant science: palynology, anatomy and dendrochronology, limnology, systematics, ecology, and molecular