Introduction to Forensics

Chapter 1

What is forensic science? What are some of the major analysis areas

in forensic science? http://www.youtube.com/watch?v

=_58XsN6XJWQ

Forensics

Bertillon’s System of Body Measurements—early method of identifiication

Early Forensic Applications

Used for indentification beginning in early 1900s

Fingerprinting

Developed by Carl Landsteiner in early 20th century

Used for identification

Blood Typing and Blood Analysis

When two objects come in contact with each other, a cross transfer of materials occurs

Believed that dust particle analysis could be used to solve any crime

His work caused the formation of crime labs to appear

Locard Exchange Principle

Chemical and physical tests

Identification of drugs, glass, paint, explosives, foreign powders, soil, and minerals

Analysis of trace evidence

http://www.youtube.com/watch?v=qlmZZoLGMpM&p=8865271F305ED39A&playnext=1&index=3

Crime Lab Departments or Services—Physical Science Unit

DNA profiling Body fluid analysis Hair and fiber

analysis Wood and plant

analysis Insect larvae

analysis http://

www.youtube.com/watch?v=RCI9YhstHK4

Biology Unit

Examine firarms, bullets, shotgun shells, etc.

Garment analysis to see if gun has been fired

Mark identification by other tools and weapons

http://www.youtube.com/watch?v=WGHCTMTh7TE

Firearms Unit

Analyses handwriting, types of printing

Examines impressions, paper, and ink types

http://www.youtube.com/watch?v=u1lrid2nobM

Document Examination Unit

Takes photographic evidence at crime scene

Infrared and ultraviolet imaging

http://www.youtube.com/watch?v=0MLY3_6O15o

Photography Unit

Examines body fluids and organs to look for drug presence

http://www.youtube.com/watch?v=cp09mWY8Buk

Toxicology Unit

Examines evidence for latent fingerprints

http://www.youtube.com/watch?v=HsRUY6twUX4

Latent Fingerprint Unit

Used more in questioning than forensic analysis

http://www.youtube.com/watch?v=GLL3wtgBiFA

Polygraph Unit

Connects recordings to person with voice

http://www.youtube.com/watch?v=_C8RulUFEcM

Voiceprint Analysis Unit

Collects and preserves physical evidence at the crime scene

http://www.youtube.com/watch?v=f51TjOT7qTs&feature=related

Crime Scene Investigation Unit

Forensic Pathology Forensic Anthropology Forensic Entomology http://

www.youtube.com/watch?v=dntO3YANo18

Forensic Psychiatry Forensic Odontology http://

www.youtube.com/watch?v=DKeEbVLZNWc

Forensic Engineering Forensic Digital Analysis

Other Forensic Services that are Available in Forensics