Forensics Review 2/3

Why would a witness description of the crime scene not be a good way to record a crime scene? (check all that apply)

• The witness has no training and could be wrong.

• The witness is a trained investigator

• Crime scene evidence must be reviewed by experts.

• Notes, sketches and photographs hold up to further scrutiny.

Which of the following should be recorded when taking notes on the crime scene?

• The time the physical evidence was discovered

• The names of all the possible suspects

• The location of physical evidence recovered

• The weather conditions

What is the medula and how is it measured?

• The outer part of the hair and its structure gives specific characteristics.

• The main body of the hair shaft and pigment granules are measured.

• The center of the hair shaft, looks like a canal and the width of it is measured giving the medula index

• The root of the hair and the size is measured to determine how much DNA is present.

In an attack, where might one find specific evidence connecting the victim to the perpetrator?

• Hands or the victim

• Feet of the victim

• Under the fingernails of the victim

• Hands of the perpetrator

What technique separate drugs based on their affinity to the solvents vs substrate, while providing for their tentative identification

• Chromatography

• Mass Spectrometry

• Titration

• Van Urk

The bullet went through a shooting victim. What is one difference that allows the investigator and medical examiner to determine the entrance wound from the exit wound?

• Exit wounds are usually larger than entrance wounds.

• Exit wounds are usually smaller than entrance wounds.

• There is usually more tearing of tissues and visible connective tissue at the entrance wound.

• There are no differences

Which one of these creates both physical and psychological dependence?

• Heroin

• Marijuana

• Cocaine

• Amphetamines

For you to have "withdrawals" you must (check all that apply)

• Been taking a drug frequently and for a significant period of time

• Feel ill (physically) when you stop taking the drug

• Be psychologically dependent on a drug

• Have "withdrawn" from at least 1 class in school

What is a characteristic of the drug marijuana?

• It is the mostly widely used "illegal" drug

• It is a synthetic drug

• It is a narcotic

• None of the above

What is a characteristic of methadone?

• It is a synthetic drug

• It tastes like Menthol

• It is the chemical name of the street drug called "meth"

• It has only 1 carbon atom