Description :
Biological evidence is a very broad category of evidence. It is physical evidence based on the nature of the evidence. The word biological is derived from the word biology, referring to the organism where other evidence is defined as something that is legally presented to a competent court to prove something. Therefore, biological evidence can be referred to as biological substances or substances such as hair, tissue, bone, teeth, blood, semen or other bodily fluids including items containing biological material which are used to confirm and provide the meaning of the evidentiary statement or claims in experiments .