Forensic science is the use of science in the service of the law. Sciences used in forensics include any discipline that can aid in the collection, preservation and analysis of evidence such as chemistry (for the identification of explosives), engineering (for examination of structural design) or biology (for DNA identification or matching). A forensic scientist is expert in any technical field and can provide an analysis of the evidence, witness testimony on examination results, technical support and even training in his or her specialized area.
Analysis of forensic evidence is used in the investigation and prosecution of civil and criminal proceedings. Often, it can help to establish the guilt or innocence of possible suspects. Forensic evidence is also used to link crimes that are thought to be related to one another.
