Forensic Science Unit 1 Quiz - Forensics, C.S.I, and Memory

Who is Edmond Locard, and what is the "Locard's Exchange Principle"?

• The "first" detective; the principle that every criminal leaves a trace.

• The "first" forensic scientist; the principle that every contact leaves a trace.

• A famous police officer; the principle that evidence can be exchanged.

• A lawyer; the principle that evidence must be exchanged.

What is the difference between class and individual characteristics of evidence?

• Class characteristics are unique to a single source; individual characteristics are shared by a group

• Class characteristics are shared by a group; individual characteristics are unique to a single source

• Class characteristics are general; individual characteristics are specific

• Class characteristics are specific; individual characteristics are general

What is the difference between admissible and inadmissible evidence?

• Admissible evidence is allowed in court; inadmissible evidence is not

• Admissible evidence is reliable; inadmissible evidence is not

• Admissible evidence is relevant; inadmissible evidence is not

• Admissible evidence is documented; inadmissible evidence is not

What is a reason that evidence may become inadmissible?

• It is very old

• It is too large in size

• It was not properly documented

• It contains class characteristics only

What is the best order of events to follow when processing a crime scene? (7 S's)

• Secure, Separate, Scan, See, Sketch, Search, Secure

• Secure, Separate, Scan, See, Sketch, Search, Store

• Secure, Separate, Scan, See, Sketch, Search, Seize

• Secure, Separate, Scan, See, Sketch, Search, Summarize

What is important to consider when packaging forensic evidence from a crime scene?

• The size of the evidence

• The type of evidence

• The location of the evidence

• The color of the evidence

What should a crime-scene sketch include?

• Only the location of evidence

• Only triangulated measurements

• The location of evidence, dimensions, and a distance scale

• Only a legend and a distance scale

What is a chain of custody, and why is it important?

• A sequence of custody events for evidence, ensuring its integrity

• A list of suspects in a criminal case

• A method for identifying eyewitnesses

• A procedure for conducting police lineups

What is the difference between a direct and a circumstantial eyewitness statement?

• Direct statements are always more reliable than circumstantial ones

• Direct statements are based on personal observation, while circumstantial ones are based on inference

• Circumstantial statements are based on personal observation, while direct ones are based on inference

• There is no difference between direct and circumstantial statements

What is a general problem when considering the use of eyewitness testimony in court?

• Eyewitnesses are always accurate

• Eyewitnesses can be influenced by external factors

• Eyewitnesses never forget details

• Eyewitnesses are always unbiased