Physical Evidence

State the Product Rule and explain how it applies to the comparison of physical evidence.

Tags

NGSS.HS-PS2-1

True or False: Most items of physical evidence retrieved at crime scenes can be linked definitively to a single person or object

• True

• False

The significance given to physical evidence is a determination left entirely to the ________________

• criminal defense attorney

• prosecutor

• jury

• forensic scientist

Physical evidence is one of the most common types of evidence found at a crime scene.

• False

• True

Who made this comment on the need for physical evidence:

“This is evidence that does not forget. It is not confused by the excitement of the moment. It is not absent because human witnesses are. It is factual evidence. Physical evidence cannot be wrong, it cannot perjure itself, it cannot be wholly absent.”

• Mathieu Orfila

• R.F. Borkenstein

• Edmond Locard

• Sir Arthur Conan Doyle

Fingerprints, unusual wear patterns, and toolmarks are all examples of what type of evidence?

• direct

• class

• individual

• speculative

What physical evidence does.... It can _________________ or refute testimony

The _______ of evidence, such as blood or hair, between individuals involved in a crime can be particularly useful.

• Class

• Motive

• Cross-transfer

• Handling

Physical evidence whose origin is known and can be compared to crime scene evidence is known as

• Standard sample

• Original sample

• Source sample

• Substrate control

What is the primary role of physical evidence in a criminal investigation?

• To establish a timeline of events

• To provide a definitive link to a suspect

• To support or refute witness testimony

• To identify the motive behind the crime