Forensic Science - Awesome Science Teacher Resources
Forensic Science
What is forensic science?
• Forensic Science is simply the application of science to the law.
• Forensic science uses biology, chemistry and physics to examine evidence at the scene of a crime or accident.
What do forensic scientists do?
• Some forensic scientists search for and examine traces of materials which might link a suspect to a victim or a crime.
• These traces might include: blood, saliva, semen and other body fluids, paint, glass, footwear and tire impressions, flammable substances and explosives, hairs, fibers and vegetable material.
• Others analyze drugs, specimens of tissue for poisons and blood or urine for alcohol.
• Forensic scientists also examine firearms and documents and investigate the causes of fires, explosions and road accidents.
How is biology used in forensic science?
• Forensic biology uses DNA profiling from blood, hair, and skin cells found at a crime scene.
• Forensic scientists use blood types to identify possible suspects from blood left at the crime scene.
• Forensic scientists use microscopes to compare trace evidence found at crime scenes with that found in suspects cars or residences.
How is forensic evidence used in court?
• Many forensic scientists present the results of their examination in the form of a written report which may be read to a law court.
• Forensic scientists may appear in court to give evidence and answer questions.
• Forensic scientists appear in the criminal courts on behalf of both prosecution and defense.
• Forensic scientists may also advise either the plaintiff or the defendant in the civil court, for example in a claim for damages resulting from a road accident.
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