CRIM 355 Lecture Notes - Lecture 7: Rigor Mortis, Drug Paraphernalia, Coroner
10 Sep 2016
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Locard"s exchange principle the exchange of materials between two objects that occurs whenever two objects come into contact with one another. At a crime scene there will be an exchange of evidence. Whenever someone enters the scene, they will leave something behind and when they exit the scene, they will take something with them! Expert witness an individual whom the court determines possesses the knowledge relevant to the trial that is not expected of the average layperson. Crime scene officers- specialized police officers that work crime scenes and do forensic evidence collection. Forensic scientists work in the crime lab, analyzing evidence, they do not attend crime scenes, and are civilian workers. First duty is to protect themselves, police safety. Rigor mortis stiffening of the body after death. Livor mortis settling and pooling of the blood after death. Algor mortis - postmortem changes that cause the body to cool after death.
