Introduction to Criminal Forensic Science. Define and distinguish forensic science from other sciences Give a brief history of forensic science Describe the services of a typical crime lab Explain the role and responsibility of the expert witness. Objectives.
Introduction to Criminal Forensic Science
FBI (Federal Bureau of Investigation in Quantico, Va.)
The Drug Enforcement Administration labs (DEA) of the Department of Justice
Bureau of Alcohol, Tobacco, and Firearms (ATF) of the Departmen of Justice
U.S. Postal Service Inspection Service
Toxicology: determines presence or absence of drugs in body fluids and tissues
Latent fingerprint identification
Polygraph unit (lie detector tests)
Voiceprint analysis (voice comparison, text to speech)
Crime scene investigation unit (group of trained technicians)
Testimony: must be factual
Must be from personal knowledge (not hearsay)
Expert cannot render any view with absolute certainty
May offer opinion based on evidence/testing
Only advocate the TRUTH.