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24 Cards in this Set

  • Front
  • Back
True or False: Testimonial evidence is more reliable than physical evidence.
False.
The reliability of a competent witness depends on...
(all the above) type of crime, age, and interviewing techniques.
What is Testimonial Evidence?
What is said in court by a competent witness, also called direct evidence.
List five types of physical evidence.
Drugs, alcohol, blood, fiber, and hair.
Explain how class evidence is helpful.
It can narrow down the list of suspects until there are few suspects.
True or False: Individual evidence has more probative value than class evidence.
True.
The significance of the Ronald Cotton Case is...
it demonstrated the fallibility of eyewitness accounts.
Why is class evidence important?
If evidence has class characteristics it can exonerate innocent suspects.
Explain the difference between testimonial evidence and physical evidence.
Testimonial evidence is what is said in court by a competent witness, physical evidence is any object or material relevant to a crime.
Why is physical evidence important and what can it prove?
Physical evidence can prove a crime has been committed and key elements of the crime, can link a suspect or victim to crime or crime scene, and can support or refute testimonial evidence in court.
True or False: Individual evidence can have probative value.
True.
A known or control sample comes from...
A known suspect.
What are some common types of physical evidence?
(Both lists) Anything found at the crime scene.
What is the difference between class evidence and individual evidence?
Class evidence narrows down the list of suspects, individual evidence is traced to a single source.
What can affect the witness' reliability?
Age, prior relationship to the accused, and the time between crime and interview can affect the witness' reliability.
True or False: A particular fiber can be matched with certainty to a piece of fabric.
False.
Physical evidence is considered...
Indirect evidence.
How can class evidence be used to narrow down a list of suspects?
Probabilities can be multiplied together and more evidence can make it stronger.
What is the significance of the Ronald Cotton case?
It demonstrated the fallibility of eyewitness accounts.
What is a control sample? Where can it be found? What does it mean in a laboratory context?
A sample in which it's origin is known. From a known victim or suspect. A sample to compare and use as a baseline.
True or False: Class evidence can have probative value.
True.
A question or unknown sample...
comes from the crime scene.
If a forensic scientist can piece together broken pieces from a bottle used as a weapon it is...
individual evidence.
How is circumstantial evidence different from physical evidence?
Circumstantial evidence implies a fact, physical evidence proves a fact.