Forensics Chapter 3 - Physical Evidence Edited Version.

Forensics Chapter 3 - Physical Evidence Edited VersionWhat is the definition of physical evidence? - ANSWERAny object that can establish a crime that has been committed or link a victim to a crime. What are 2 reasons why physical evidence is more reliable than eyewitness testimony? - ANSWER1. Can link suspects with victim 2. Can prove a crime has been committed List 6 types of physical evidence derived from human or other animal sources that are commonly found at crime scenes. - ANSWER1. Hair 2. Saliva 3. Semen 4. Fingerprints 5. Blood 6. Organs List 6 types of physical evidence that is not derived - ANSWER1. Impressions 2. Ink 3. Fibers 4. Glass 5. Explosives 6. Documents List the general rule of law when identifying evidence at a crime scene - ANSWEREvidence collected must be relevant to be admissible. What are 2 conditions for the relevance of physical evidence in order to be admissible in court? - ANSWER1. Maternal = pertains to particular crime 2. Probative = must prove something Define physical and nonphysical evidence - ANSWER1. Nonphysical - verbal testimony about the crime or sometimes actions during a crime. 2. Physical - tangible objects Define real and demonstrative evidence - ANSWER1. Demonstrative - evidence used to create or help evidence sketches or videotape. 2. Real - generated by criminal activity found at the crime scene. (CAD PROGRAMS) Define known and unknown evidence - ANSWER1. Known - objects whose source is known at the time it was collected. 2. Unknown - collected at the source that has unknown origins. .