Forensics Basics
What is forensic science?
Using scientific methods and techniques to solve crimes
The reason mammals have hair?
Insulation, sensation
What are the 3 kinds of fingerprints?
Loop, Whorl, Arch
True or false - blood type is not heritable
What makes an eyewitness testimony unreliable?
Person who may have committed crime
The suspect
A fiber that looks like hair under the microscope.
Wool
This is a type of fingerprint evidence that is left by ink or some other substance left behind showing ridge markings
Patent
What do we call the small droplets that surround the parent drop?
Satellite Drops
How can blood spatter be used to corroborate eyewitness testimony?
The shape, angle and size of droplets can tell investigators where the blood came from and possibly what caused it.
How many photos should be taken of a specific piece of evidence?
3
Type of evidence that hair and fibers fall under
trace, physical, bio (hair), class, circumstantial
What are 2 methods of recovering fingerprints?
Iodine (chemical lifting) Dusting
What happens to the diameter of a blood droplet as the distance it falls from increases?
It gets bigger,
What is an example of a non-violent crime?
Theft, burglary, counterfeit documents, forgery...
What type of evidence is blood?
Physical, Biological, Class, Individual, Circumstantial
The center part of a piece of hair is called the
Medulla
What type of minutiae helps identify what type of whorl someone has (central pocket or plain)
Delta
What antibodies are present in the blood of a person of type B negative blood?
What is one way a criminal might leave evidence behind?
What is an example of Direct Evidence?
Confession, Video evidence.
This characteristic of hair, found on the outer most layer, can be used to differentiate species.
Cuticle (scales)
Three types of minutiae
delta, short ridge, island, eye, fork, trifurcation, ridge ending, bridge, etc..
What are the universal donor and recipient blood types?
O negative and AB positive
Colonol Mustard, in the Conservatory, with the....
Candlestick.