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When did Forensic science first start?
Early 1800's
True or False. Only authorized personnel should be at the crime scene.
True
What is a fingerprint?
A print of the fingertip that shows the detailed lines nad pattern of the skin. This is different for everyone and every finger.
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Locard
What is used to mark the scene?
Crime scene tape/ caution tape
How reliable are bite marks as evidence?
Very unreliable, can not stand as evidence in court.
What is Divided attention?
focusing on multiple tasks at once.
When did the first medical examiner get involved
1877
Who examines deceased bodies.
Medical examiner
How are fingerprints found on a crime scene?
What is long term procedural memory?
Memory of performing certain task or actions that you almost never forget.
How was DNA first used?
Who is the first to arrive at a crime scene?
FIrst responder/police officer
What is the most common type of DNA analysis?
PCR, collects very small amounts of DNA and is able to recognize it.
What percentage of witness testimonies are correct?
Only 50% of witness have a true and accuarte description or suspect or evidence.
When were fingerprints first used?
1903, New York state prison
5 steps in a crime scene procedure
1. Physical evidnece recognition
2. documentation
3.collection or evience
4. packaging/preservation
5. scene reconstruction
Who analyzes DNA for an investigation?
Crime lab scientist.