In a trial, there are four main types of evidence that can be admitted into a case: testimony, circumstantial evidence, direct evidence, and real or physical evidence. Today, evidence usually comes from sources of the real of physical evidence such as bullets, body fluids, and fingerprints. Inside that category of evidence, there is a specific field called Forensic Science. According to “Forensic Science: Evidence, Clues, and Investigation” by Andrea Campbell, the physical evidence category, sometimes called hard evidence, is the best evidence to present in a trial dealing with a crime. Forensic Science is a science devoted to answering legal questions drawing together knowledge from one field or a combination of fields such as medicine,
