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What are the common types of evidence?
- 1. Blood, semen, and saliva: Liquid or dried, onto fabrics or others objects. These substances are subject to serological and biochemical analysis.2. Documents: Written/typewritten, authenticity so source can be determines .3. Drugs: substances seized
- 4. Explosives: devices containing an explosive charge, residues of an explosive
- 5. Fibers: Any natural or synthetic fiber
- 6. Fingerprints: latent or visible
- 7. Firearms and ammunition: Discharged or intact ammunition
- 8. Glass: Glass particle or fragment, also includes windowpanes containing holes made my a bullet or other projectile
- 9. Hair: Animal or human
- 10. Impressions: Tire markings, shoe prints, depressions in soft soils, all others forms of tracks
- 11. Organs and physiological fluid: Submitted for toxicology to detect possible existence of drugs or poisons, includes blood
- 12. Paint5: liquid or dried, car paint in auto accidents
- 13. Petroleum products:gasoline residues removed from the scene of an arson, or grease and oil stains whose presence may suggest involvement in a crime
- 14. Plastic Bags: Garbage bag may be evidential, can be associated with a similar bag in possession of a suspect
- 15. Plastic, rubbers, and other polymers: linked to objects of a suspect
- 16. Powder residues: Any item suspected of containing firearm discharge residues
- 17. Serial numbers: all stolen property, the restoration of erased identification numbers
- 18. Soil and minerals: items containing soil or mineral to confirm a suspect to a particular location, could be embedded in shoes or insulation found on garments
- 19. Tool marks: Any objects that is suspected of containing the impression of another object.
- 20. Vehicle lights: Examination of to see if the light was either on or off at time of impact
- 21. Wood and other vegetative matter: Wood, sawdust, shavings, or vegetative matter on clothing, shoes, or tools
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.
Process of ascertaining whether two or more objects have a common origin
Properties of evidence that can be attributed to a common source with an extremely high degree of certainty
Properties of evidence that can be associated only with a group and never with a single source
Multiplying together the frequencies of independently occurring genetic markers to obtain an overall frequency of occurrence for a genetic profile
- Integrated Automated Fingerprint Identification System
- Maintained by the FBI, became operational in '99
- Combined DNA Index System
- Enable federal, state, and local crime laboratories to electronically exchange and compare DNA profiles, thereby linking crimes to each other and to convicted offenders
- National Integrated Ballistics Information Network
- Maintained by the bureau of Alcohol, Tobacco, Firearms, and Explosives.
- The heart of the NIBIN is the IBIS it comprises of a microscope and a computer unit that can capture an image of a bullet or cartridge case
- International Forensic Automotive Paint Date Query
- Database contains chemical and color information pertaining to original automotive paints
- Deeveloped and maintained by the Forensic Laboratory Services of the RCMP
A process of developing DNA profiles from a buccal; swab in 90 minutes or less that are compatible with a CODIS search
Shoeprint Image Capture and Retrieval
Additional similar database is TreadMare