Forensics
What is forensic science?
The application of scientific methods and techniques to legal matters (crime).
What is the shape of DNA called?
A helix/double helix
What are the 3 kinds of fingerprints?
Loop, Whorl, Arch
____ can prevent contamination of suspect/evidence collection.
Gloves
Splatter or Spatter????
SPATTER
Secure the crime scene.
DNA's full scientific name?
Deoxyribonucleic Acid
Which fingerprint pattern has a delta?
Whorl
Is eyewitness testimony reliable?
NO
What does chromatography do?
Separates ink into different components/colors
What does a field scientist do?
Collect evidence/present at the actual scene
Name one source of DNA evidence.
Blood, saliva, hair root, skin cells.
What are the dots found on fingerprints called?
Minutiae
Name 3 categories of evidence.
Physical: Weapons, tool marks, broken items
Biological
Trace
Impression
Digital
Document
What principle states that every contact leaves a trace?
Locard's Exchange Principle
What could be used to reveal hidden fingerprints?
Powder
True or false: C always pairs with T and A always pairs with G
FALSE
What percentage of people have whorl fingerprints?
30%
What are the 3 kinds of footprints?
Visible, Latent, Plastic
What term describes the documented movement of evidence from collection to court?
Chain of Custody
What term describes fingerprints that cannot be seen without processing?
Latent fingerprints
What does "C" always pair with?
G
Crime scene fingerprints that can be seen without dusting are...
patent/plastic
Name 3 aspects of handwriting.
Line quality, spacing, size consistency, continuous, connecting letters, complete letters, cursive/print, pen pressure, slant, line habits, fancy curls/swirls, dots on i's and crosses on t's
What instrument is used to examine tiny pieces of evidence?
Microscope