Crime Scene Analyst IAI Review Exam
Questions And Answers |Latest 2025 |
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Define the term Evidence - Answer✔Something legally submitted to a competent tier of fact as
a means of certainty the truth of any allege matter under investigation
Give examples of testimonial and real evidence - Answer✔Eye witness, DNA, fibers, prints
Which of the following pieces of evidence would be more probative in associating the
defendant to the victim in a murder trial - Answer✔A bloodstain found on the defendant's
jacket taht subsequently matches the victim's DNA
List the identifying information that should be listed on the container when collecting evidence
at a crime scene - Answer✔1. Name of person collecting
2. Dates of collection/transfer
3. Agency, case #, type of crime
4. Property tag #
5. Victim/suspect name
6. Storage location
7. Description of item
(T/F) When collecting evidence, the general rule is that more is better than less - Answer✔True
Which of the following would be considered a known sample - Answer✔Buccal swabs from the
suspect
You arrive at the scene of a homicide and see a blood-soaked shirt on the floor. Once it is
properly documented, which of the following containers should you place it in for
transportation to the crime lab? - Answer✔Paper bag
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The forensic practitioner's sole obligation is to serve the aims of - Answer✔The legal system
(not to over/under state scientific findings, unbias)
Which organization has a profession code of ethics that is applicable to forensic science
laboratory - Answer✔The American Society of Crime Laboratory Directors
List some testifying tips that can be used when undergoing cross examination - Answer✔1. Be
prepared
2. Ask for clarification
3. Talk to the jury
4. Layman's terms
Which of the following is a major task that the first res ponder must be concerned with -
Answer✔Protecting the crime scene
Which of the following principles is associated with processing crime scenes and is often
summarized by "every contact leaves a trace" - Answer✔Locard Exchange Principle
Describe why it is important for the first responder to record the time associated with a crime
scene investigation - Answer✔1. Checking a suspect's story
2. Precision and credibility to officer's statement
When entering a crime scene, the first responder should proceed with extreme caution and
concentrate their attention to possible evidence at which locations - Answer✔1. Places that
evidence could be destroyed easily
2. Focal points of the scene
List some of the points that should be covered when taking notes on the condition of the crime
scene - Answer✔1. Smells
2. Temp
3. Doors open/closed
4. Lights on/off
5. Time indicators
6. Signs of activity
When is it appropriate for the first responding officer to move a piece of evidence -
Answer✔When he is charged with the responsibility of processing the scene for physical
evidence
You are called to the scene of a sexual assault that took place at a park. Describe how you
would secure the scene - Answer✔1. Clear scene
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2. Large area of crime scene tape
3. Observe disturbed nature
The position of __________ and ___________ may reveal the direction of the shot and possible
location of the assailant - Answer✔Bullets, cartridge cases
Describe the proper procedure when dealing with multiple witnesses at the scene of a crime -
Answer✔Separate them as soon as possible
List five crime scene 'dos' and five crime scene 'donts' - Answer✔Do:
1. Limit access to the scene
2. Note original conditions
3. Photos with 90 degree angle and L scales
4. Call crime scene
5. Record location of evidence before moving
Dont:
1. Touch anything unecessarily
2. Use routes suspect used
3. Fail to document contamination
4. Allow evidence to be compromised by nature
5. Photos without scales
List the seven key objectives of a crime scene investigator - Answer✔1. Reconstruct the scene
2. Ascertain the sequence of events
3. Determine the mode of operation
4. Uncover a motive
5. Find out criminal may have done
6. Recover physical evidence
7. Identify suspect/victim
The notion of ___________ in criminal investigations is a key factor to the solution of the case -
Answer✔Teamwork
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