| Term | Definition |
| Matheiu Orfila | Father of toxicology |
| Alphonse Bertillon | Father of criminal identification |
| Francis Galton | Developed the method of classifying fingerprints |
| Leone Lattes | Developed the method for blood typing |
| Calvin Goddard | Developed the method for microscope in the usage of the comparsion of firearms |
| Albert S. Osborn | Developed the principles of document examination |
| Hans Gross | Application of science to crimes |
| Edmond Locard | Locard's Exchange Principle |
| Locard's Exchange Principle | Trace evidence is transferred when people come in contact |
| Physical Science Lab | uses principles of chemistry, physics, geology to identifya dn compare evidence |
| Biology Unit | Find DNA matches to blood stains, body fluids, hairs, and fibers |
| Firearms Unit | Examines firearms, bullets, cartridges, shotguns shells, and ammunition |
| Forensic Science | the application of science to criminal or civil law |
| Number of Crime Labs | Over 300 labs |
| Toxicology Unit | the findings of drugs and other posions |
| Latent Fingerprint Unit | Examines the evidence for fingerprints |
| Areas of Science | Chemisry, physics, geology, biology |
| Increase in Crime Labs | Increase crime rate, increase use of DNA evidence, required specialized training and equipment |
| Evidence-Collection Unit | Preservation of physical evidence |
| Expert Testimony | A witness who through education has knowledge on a subject that aids in the incrimination of a suspect |
| Evidence Technicans | A person assigned of a suspect collecting and storing evidence |
| Functions of a Forensic Scientist | Analysis of physical, Provide expert witness testimony, provide training in recognition collection, preservation of evidence |
| ATF | Bureau of Alcohol, Tobacco, Firears, Explosives |
| FBI | Federal Bureau of Investigation |
| LAPD | Los Angeles Police Department |
| DEA | Drug Enforcement Administration |
| U.S. Postal Service | criminal investigations related to the postal service |
| Anthropology | identification and examination of human skeletal remains |
| Odontology | used teeth to identify; victims when body is unrecognizable |
| Pathology | investigation of sudden, unnatural, unexpalined or violent death |
| Entomology | study of insects in relation to a criminal investigation |
| Forensic Engineering | concerned with failure analysis accident reconstruction |
| Psychology | examines relationships between human behavior and legal proceedings |