Criminalistics Exam 1 || A+ GRADED.

expert witness correct answers A person who an demonstrate a particular skill or has knowledge in a trade or profession that will help the court determine the truth of the matter at issue Locard's exchange principle correct answers Whenever two objects come into contact with one another, there is exchange of materials between them scientific method correct answers A process that uses strict guidelines to ensure careful and systematic collection, organization, and analysis of information physical evidence correct answers Any object that can establish that a crime has or has not been omitted or can link a crime and its victim or its perpetrator rough sketch correct answers A draft representation of all essential information and measurements at a crime scene. This sketch is drawn at the crime scene. finished sketch correct answers A precise rendering of the crime scene, usually drawn to scale chain of custody correct answers A list of all people who came into possession of an item of evidence standard/reference sample correct answers Physical evidence whose origin is known, such as fibers or hair from a suspect, that can be compared to a crime-scene evidence buccal swab correct answers A swab of the inner portion of the cheek; cheek cells are usually collected to determine the DNA profile of an individual substrate control correct answers Uncontaminated surface material close to an area where physical evidence has been deposited. This sample is to be used to ensure that the surface on which a sample has been deposited does not interfere with laboratory tests algor mortis correct answers A process that occurs after death in which the body temperature continually cools until it reaches the ambient or room temperature class characteristics correct answers Properties of evidence that can be associated only with a group and never with a single source comparison correct answers The process of ascertaining whether two or more objects have a common origin identification correct answers The process of determining a substance's physical or chemical identity. Drug analysis, species determination, and explosive residue analysis are typical examples of this undertaking in a forensic setting individual characteristics correct answers Properties of evidence that can be attributed to a common source with an extremely high degree of certainty