An investigator enters a crime scene and sees that the victim was wearing a pink coat. Is this an observation or an inference?
Observation
100
How many characteristics of handwriting are used to analyze handwriting samples?
12
100
Chromatography is a procedure used to separate out the components of a ____________.
Mixture
100
What is the fingerprint pattern subgroup that describes a print pattern in which the ridge line enter from one side of the finger, slightly rise up and fall, and leave on the other side of the finger?
Plain Arch
100
What is the clear, scaly part that covers the outside of a hair?
Cuticle
200
A reason for committing a crime is called a...
Motive
200
What is the name of the branch of forensics science that analyzes handwriting samples?
Graphology
200
Which type of mixture is lipstick considered to be?
Homogenous Mixture
200
Bifurcations, ridge endings, and islands are all examples of this.
Minutiae (Ridge Line Characteristics)
200
What is the complete name of the microscopes that we use in class? (all three words)
Compound Light Microscope
300
What does CER stand for? (you need all 3 words)
Claim, Evidence, Reasoning
300
Letters that are written with a lot of pen pressure turn out __________ than letters that are written with a little pen pressure.
darker, thicker
300
The liquid that dissolves a substance is called a _____________.
Solvent
300
What fingerprint pattern subgroup describes a loop that opens towards the thumb side of the arm?
Radial Loop
300
What part of the hair contains the pigment (coloration)?
Cortex
400
Which type of evidence is considered direct evidence? a) DNA evidence found in a crime scene b) witness testimony of a crime c) hair evidence found in a crime scene
b) witness testimony of a crime
400
Which characteristic is used to determine how straight or shaky the lines of the letters are?
Line Quality
400
In paper chromatography, which phase of the experiment is the paper considered to be, the mobile phase or stationary phase?
Stationary Phase
400
What is the term for fingerprints left behind on surfaces by the oils on the skin?
Latent/Invisible Prints
400
What is the total magnification of a microscope that is using a 10x ocular lens and a 60x objective lens?
600x
500
Which type of evidence is circumstantial evidence? a) witness testimony of an argument before a crime b) witness testimony of a crime c) video recording of a crime
a) witness testimony of an argument before a crime
500
A dot over an i or a line across a t are examples of this.
Diacritics
500
What is the name of the value that is determined by the following formula (distance traveled by sample / distance traveled by liquid)?
Retention Factor (Rf value)
500
Which process is best for revealing prints left on soft, porous materials?
Iodine Fuming
500
Hairs that have been forcibly pulled out of the skin usually contain a ___________ _________, which is the richest source of DNA on a hair.