To look at the possible applications of fields of science in forensic work, let us first look at the possible types of physical evidence we could have at a scene of crime. Non-physical evidence relates to things like verbal testimony about what a witness saw and remembered, and to things like a 2 or 3-dimensional scale diagram or model of a crime scene, or a chart or graph of observations or from an analytical instrument.Physical evidence is real and consists of things or objects.The perpetrator will leave behind traces of himself at the sceneĮvidence is that which tends to support a contention, or show that something is the case, or prove the existence of something.The victim will retain traces of the perpetrator and may transfer traces of himself on the perpetrator. The perpetrator will take away traces of the victim and the scene.The doctrine of exchange or transfer is based on (Wagner, 1986): “that the person or persons at the scene when a crime is committed will almost always leave something and take something away” It is a very large ”umbrella” of expert fields.Įdmond Locard (1923): “theory of interchange”: Which of the ”sciences” can be ”forensic”? Just about any science can be a forensic science if it can have any application to justice or judicial matters. In its broadest sense, Forensic Science can be considered the application of science to those criminal and civil laws that are enforced by police agencies in a criminal justice system.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |