What is Forensic Science?
Forensic Science is the investigation of a crime using different scientific techniques.
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Let‛s learn more!
When a crime is committed Forensic Scientists help collect the evidence. They may use Chemistry, Genetics, Biology, Pathology, Entomology and Toxicology to examine the clues. Some of the evidence gathered at a crime scene could include hair, skin cells, fibres from clothes or carpets, footprints, fingerprints and blood samples.
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Hair and fibre samples found at crime scenes can also give vital clues to solving the crime. These samples can be viewed under high powered microscopes. Hair samples can give an idea of a person’s age, general health and hair dyes or hair styling products can also be identified.
Forensic chemistry techniques can reveal a lot about fibres such as the type of dye used, the type of fabric, where the clothes were made.
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There are two types of fingerprints usually left at a crime scene:
- VISIBLE PRINTS: you can see these prints with your own eyes
- LATENT PRINTS: you may not be able to see them but they are left due to sweat or oils on the skin.
Some surfaces are difficult to lift fingerprints from. In such cases a flourescent powder is used to bind to the organic matter in the fingerprint and the print is then visible under UV light.
Forensic ballisitcs is the examination of bullets and firearms in order to identify the weapon used in a crime.
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