Friction Ridge
Fingerprint Patterns
Loop, Whorl, Arch
Forensic Toxicology
How drugs and poisons affect humans
The primary task of the person first on the scene.
Render medical aid, detain possible suspects
What is evidence?
Information used in a legal investigation to make a fact or proposition more or less likely.
First concern with collecting firearm evidence?
Safety. Treat all firearms as they are loaded at all times.
Friction ridge impression not readily visible to the naked eye
Latent Print
Entitity that offers certification
American Board of Forensic Toxicology (ABFT)
The most important activity performed at the crime scene.
Documentation (notes, photos/videos, sketches)
Evidence that tends to establish innocence.
Exculpatory evidence
Pistol that fires continuously with one trigger pull.
Automatic
Pattern consisting of at least 2 deltas and one or more core
Whorl
LD50
dose that would be lethal for 50% of test sample
The 3 types of photographs taken at the scene.
Overall, Mid-range, Close-up
How would a t-shirt appearing to have bodily fluids on it be packaged?
4 class characteristics of a barrel.
Caliber, Number of lands and grooves, Direction of twist, Width of lands and grooves.
Animal with most humanlike fingerprints
Koala
Agonist vs Antagonist
Agonist: binds to receptor causing it to exert its function
Antagonist: binds to receptor but doesnt cause it to exert its function
The search method used when looking for something specific such as a bullet casing at a shooting scene.
Spiral (Contracting/Expanding)
3 requirements on evidence packaging.
Chain of Custody, Signature and Date
Cartridge Case Comparison Areas (4)
Breech face marks, Firing Pin impressions, Extractor marks, Ejector marks
Chemical that can be used to develop prints on paper without needing to fixed afterwards.
Ninhydrin
ADME
Absorption, Distribution, Metabolism, Elimination
The 4th amendment.
The right of people to be secure in their persons, houses, papers, and effects againt unreasobale searches and seizures. (Warrants!!)
Important tool used for the analysis of both ballistic and trace evidence.
Comparison Microscope
Major primer elements.
Lead, Barium, Antimony (Pb, Ba, Sb)