Forensic Science Intro Review

In a crime scene investigation, which substance would a Forensic Serologist NOT be able to identify?

• Semen found on a piece of clothing

• Blood stains on the carpet

• Saliva on a discarded cigarette butt

• They would be able to identify all of the three substances.

Answer explanation

A Forensic Serologist is a professional who identifies bodily fluids like blood, semen, and saliva at crime scenes to assist in investigations. Therefore, the answer to the question is 'They would identify all of the three choices', as these are all substances that a Forensic Serologist would identify.

This refers to any material items present at the crime scene or on the victims.

• Physical evidence

• Trace evidence

• Evidence

• Testimonial evidence

Found in small but measurable amounts. 

• Physical evidence
• Testimonial evidence
• Rare evidence
• Trace evidence

Which of the following BEST defines forensic science?

• Application of science such as physics, chemistry, biology, engineering, psychology and medicine to law in events subject to criminal or civil litigation. 
• Application of science to criminal investigation. 
• Applying science techniques to a crime 
• None of the above 

Imagine you are a detective investigating a crime scene. You notice that there are materials transferred between the victim and the suspect. This concept, that whenever two objects come in contact, there is a transfer of material, was stated by . . .

• Antonie Leuwenhook

• Edmond Locard

• Louis Pasture

• Miranda Lambert

Answer explanation

The concept that there is a transfer of material when two objects come in contact was stated by Locard. Known as Locard's exchange principle, this idea is fundamental in forensic science and criminal investigations, which suggests Locard as the correct choice in the question.

The Innocence Project often uses DNA analysis to exonerate victims. In the majority of cases where there has been an error, what type of evidence was used to convict?

• mDNA

• Eyewitness testimony

• Fingerprints

• Degraded DNA evidence

indirect evidence, evidence used to imply a fact but not prove it directly

• control sample evidence
• eyewitness testimony
• primary evidence
• circumstantial evidence

Which entity maintains the largest crime laboratory in the world? 

• LAPD
• Scotland Yard
• FBI
• RHPD

Who set forth the “exchange principle” stating that a transfer of evidence occurs whenever a criminal comes in contact with a victim?

• Einstein
• Locard
• Goddard
• Bohr

During a murder investigation, Detective John found some bodily fluids and organs at the crime scene. Which crime lab unit should he contact to examine these for the presence of drugs and poisons?

• Photography

• Toolmarks

• Toxicology

• Evidence Collection