Forensic Science Final Exam

How can insect evidence help determine PMI?

• The type of insects can determine cause of death

• The warmth of the maggot milkshake can determine PMI

• The life stages of insects on the body can determine PMI

• The number of eggs a female lays can determine PMI

What is Locard’s Principle of Exchange?

• The notion that blood can sometimes be considered direct evidence

• The notion that physical matter can be transferred during an interaction

• The notion that a person is innocent until proven guilty

• The notion that trace evidence is circumstantial

Which of the following is true for using luminol?

• It can cause cancer

• It can destroy evidence

• It reveals hidden blood

• It can reveal blood and destroy evidence

What is the biggest limitation to entomological evidence?

• It is less helpful in determining PMI if the body was moved after death

• It is less helpful in determining PMI if the body was moved before death

• It is less helpful in determining cause of death if the body was moved after death

• It is less helpful in determining cause of death if the body was moved before death

A male victim is found at a crime scene. What would his AMEL genes be?

• X, X

• X, Y

• X, X, Y

• Y, Z

Which of the following can affect observation and eyewitness accounts?

• Perception

• Awareness

• Emotions

• All of the Above

What was the Innocence Project?

• A project that overturned false convictions using DNA evidence

• A project that demonstrated how to properly represent a defendant in court

• A project that provided illegal, falsified evidence in court

• A project that sought to throw out evidence in court

What is PMI?

• The time between death and body discovery

• The time when a coach calls you to play

• The time it takes a body to decay

• The reason someone died

The DNA matches one of the suspects. Who does the DNA belong to?

The DNA belongs to ​ (a)   because ​ (b)  

• Suspect 1
• Suspect 2
• they confessed to the crime
• Suspect 3
• their DNA matches that found at the crime scene.
• they left behind a handprint

What is the angle of impact of a drop of blood that has a width of 2 mm and a length of 4 mm?

• 30°

• 60°

• 45°

• 90°