Current DNA typing methods (PCR or Polymerase Chain Reaction) can be used not only to analyze very limited samples, but have enormous discrimination power. The chance that two people have the same DNA profile, excluding related individuals, can be as low as one in several billion with these types of analyses.

An additional examination which deals with blood but is not strictly a forensic biology function, is bloodspatter interpretation. This technique is useful primarily in the field, and occasionally in the laboratory. The careful examination of bloodstain patterns may provide some information on how they were deposited, thus assisting in the reconstruction of the crime.The information that is commonly developed by a bloodspatter analysis includes determining the angle and direction at which the blood struck the surface, and some information as to the force of the action which caused the blood droplets to be produced.

Entamology involves the study of insects on a human corpse. It involves the discovery of insects on a body which allows investigators to determine the approximate time of death, possible causes of death and esatblish a timeline.

Through the studies of Forensics many crimes have been solved and many more will be conquered in the future. In the following web pages you find a lot of information regarding these four main areas of forensic biology and hopefully this will help you in developing a greater appreciation for those people invovled in the competitive world of forensic science.