Any object that can establish that a crime has been committed, or can provide a link between a crime and its victim, or between a crime and its perpetrator.

A specialist who breaks down photographic images to identify suspects and to measure items and people within those images.

Small, pin-like hemorrhages that occur beneath the skin. Usually observed on the lining of the inner surface of the eyelids. This is a common result of death by asphyxiation or strangulation.

In order to determine the size of objects within a given photograph, analysts will identify one item in that photograph and measure the distance between that item and the camera used to make the photograph. This perspective allows them to measure everything in the photograph.

The study of the essential nature of diseases and especially of the structural and functional changes produced by them.

The study of pollens.

A test that determines if a blood stain is human or animal.

A chemical solution that will determine whether a given stain contains blood.

The study of the anatomy, growth, and diseases of the teeth. In the absence of other factors, ondontolgy can be used to identify human remains.