FRSC 1011 Exam Questions with
Verified Answers
What is forensic science? - ✔✔the application of science to criminal and civil laws
Locard's Exchange Principle - ✔✔Every contact leaves a trace
what are modern advances in forensics science? - ✔✔- computer technology
- chromatography, spectrophotometry, electrophoresis
- DNA typing
- computerized database
(T/F) there are the government funded forensic institutes in Canada - ✔✔True
What are the 5 basic services provided by USA crime labs? - ✔✔- physical science
- biology
- firearms
- documentation examination
- photography
What are the 4 services provided by CFS? - ✔✔- biology
- chemistry
- physical sciences
- toxicology
Only _________ evidence is free from inherent error or bias - ✔✔physical
,what is the scientific method? - ✔✔1. Formulate a question
2. Formulate a hypothesis
3. Test the hypothesis
4. Validating the hypothesis makes the evidence scientific
An expert witness can testify if.... - ✔✔- testimony is based on sufficient facts or data
- testimony is a product of reliable principles
- witness has applied the principles reliably to the facts of the case
(T/F) General acceptance is the absolute standard - ✔✔F
General acceptance is NOT the absolute standard
Daubert v. Merrell Dow Pharmaceuticals
Lay witness must be _____ - ✔✔factual
- cannot contain the witness' personal opinions
What happened in Frye v. US - ✔✔- rejected the scientific validity of the lie detector
What is the process for the first responding police officer at a crime scene? - ✔✔- assume the
crime is still in progress until proven otherwise
- assist injured victims
- detain potential suspects or witnesses
- secure the scene
- call additional personnel (officers or forensics)
The secured crime scene should include ______ and _______ - ✔✔- where crime took place
,- surrounding area where there could be evidence
What are the walkthrough steps? - ✔✔- locate the perpetrator's entry and exit
- indirect path to the center of the scene
- locate and document obvious evidence
- observe and record the condition of the scene
What are the different search patterns? - ✔✔- line
- grid
- spiral
- wheel
- quadrant
(T/F)vehicles are only allowed to be searched at the scene - ✔✔F
They can be searched at the police department
(T/F) Crime scene notes can be audio recordings - ✔✔T
Have to be transcribed to written notes later
Photographic film consists of a sheet of _____ ______ grains that expose in the presence of
light - ✔✔silver halide
Define film speed - ✔✔measure of the light-gathering capacity of the film
What are the pros to using SLR and DSLR - ✔✔- use of flashes, lenses and filters
- aperture (diameter of the opening) and shutter speed (length of time exposed to light)
, what are the different lens types? - ✔✔- normal
- telephoto
- wide-angle
- macro
- multi-purpose
_____ filters block one specific wavelength and _____ filters allow a small range of wavelengths
through - ✔✔- barrier
- bypass
Pros and cons of digital images - ✔✔Pros:
- exceeds 6 megapixels
- create a 3D image of the scene
Cons:
- easily manipulated
- may lose data
How is admissibility of digital photos enforced? - ✔✔- Developing standard operating
procedures must be followed
- save images to writable disks by lossless compression
- save altered images in separate files
- keep photography log
- photographer testimony
Finished crime scene sketches are done through ______ ______ _____ programs -
✔✔Computer-aided drafting (CAD)
Verified Answers
What is forensic science? - ✔✔the application of science to criminal and civil laws
Locard's Exchange Principle - ✔✔Every contact leaves a trace
what are modern advances in forensics science? - ✔✔- computer technology
- chromatography, spectrophotometry, electrophoresis
- DNA typing
- computerized database
(T/F) there are the government funded forensic institutes in Canada - ✔✔True
What are the 5 basic services provided by USA crime labs? - ✔✔- physical science
- biology
- firearms
- documentation examination
- photography
What are the 4 services provided by CFS? - ✔✔- biology
- chemistry
- physical sciences
- toxicology
Only _________ evidence is free from inherent error or bias - ✔✔physical
,what is the scientific method? - ✔✔1. Formulate a question
2. Formulate a hypothesis
3. Test the hypothesis
4. Validating the hypothesis makes the evidence scientific
An expert witness can testify if.... - ✔✔- testimony is based on sufficient facts or data
- testimony is a product of reliable principles
- witness has applied the principles reliably to the facts of the case
(T/F) General acceptance is the absolute standard - ✔✔F
General acceptance is NOT the absolute standard
Daubert v. Merrell Dow Pharmaceuticals
Lay witness must be _____ - ✔✔factual
- cannot contain the witness' personal opinions
What happened in Frye v. US - ✔✔- rejected the scientific validity of the lie detector
What is the process for the first responding police officer at a crime scene? - ✔✔- assume the
crime is still in progress until proven otherwise
- assist injured victims
- detain potential suspects or witnesses
- secure the scene
- call additional personnel (officers or forensics)
The secured crime scene should include ______ and _______ - ✔✔- where crime took place
,- surrounding area where there could be evidence
What are the walkthrough steps? - ✔✔- locate the perpetrator's entry and exit
- indirect path to the center of the scene
- locate and document obvious evidence
- observe and record the condition of the scene
What are the different search patterns? - ✔✔- line
- grid
- spiral
- wheel
- quadrant
(T/F)vehicles are only allowed to be searched at the scene - ✔✔F
They can be searched at the police department
(T/F) Crime scene notes can be audio recordings - ✔✔T
Have to be transcribed to written notes later
Photographic film consists of a sheet of _____ ______ grains that expose in the presence of
light - ✔✔silver halide
Define film speed - ✔✔measure of the light-gathering capacity of the film
What are the pros to using SLR and DSLR - ✔✔- use of flashes, lenses and filters
- aperture (diameter of the opening) and shutter speed (length of time exposed to light)
, what are the different lens types? - ✔✔- normal
- telephoto
- wide-angle
- macro
- multi-purpose
_____ filters block one specific wavelength and _____ filters allow a small range of wavelengths
through - ✔✔- barrier
- bypass
Pros and cons of digital images - ✔✔Pros:
- exceeds 6 megapixels
- create a 3D image of the scene
Cons:
- easily manipulated
- may lose data
How is admissibility of digital photos enforced? - ✔✔- Developing standard operating
procedures must be followed
- save images to writable disks by lossless compression
- save altered images in separate files
- keep photography log
- photographer testimony
Finished crime scene sketches are done through ______ ______ _____ programs -
✔✔Computer-aided drafting (CAD)
