Forensic Science requires... - Answers development of principles and techniques to identify and
compare physical evidence
Marcello Malpighi - Answers First notes on finger print ridges
Henry Faulds - Answers First to suggest fingerprints for ID purposes gave to Darwin who gave
to Galton
Alphonse Bertillon (1879) - Answers Anthropometry - first system fro personal Identification
Hans Gross - Answers advocated for the application of science to the law
Carl Wilhelm - Answers detection of arsenic in corpses
Valetin Ross - Answers detecting small amounts of arsenic in stomach
Mathieu Orfila - Answers Father of Toxicology
Conan Doyle - Answers considerable influence on popularizing scientific methods of cime
detetction (Sherlock Holmes)
Karl Landsteiner - Answers Blood Typing
Leon Lattes - Answers Blood Typing on Dry Specimens
Osborn - Answers Document Examination
Walter C. McCrone - Answers Microscopy to forensics
Calvin Goddard - Answers Fire arms examination
Alec Jeffereys - Answers DNA Typing
Crime Laboratories Canada - Answers (1) 6 RCMP Regional Laboratories
(2) CFS in TO
(3) Institute of Legal Medincine and Police Science in Montreal
13 OPP Forensic Identification Labs in ON
Scientific Method (defintion) - Answers compares evidence obtained by investigators with
observable physical findings discovered at the crime scene, in the crime laboratory, or in the
autopsy suite.
Scientific Method Process - Answers 1. Formulate Question
,2. Formulate Hypothesis
3. Test Hypothesis
4. Upon validation, becomes suitable as scientific evidence
Frye v. United States - Answers General Acceptance
Daubert v. Merrell Dow Pharamceuticals - Answers General Acceptance is not absolute
standard
Lay Witness - Answers factual information, no personal opinions
Expert Witness - Answers evaluate evidence and express opinions
At the command centre of a crime scene - Answers 1. receive tasks
2. store equipment
3. discuss
4. communicate
line/strip search pattern - Answers 1 or 2 investigators
Grid Search pattern - Answers 2 or more investigators
Film Photography - Answers consists of a sheet of silver halide grains which "expose" when
exposed to light
Film speed - Answers measure of the light gathering capacity of the film
Digital photoraphy - Answers a light sensitive microchip captures light on each of millions of tiny
picture elements called pixels
2 types of cameras - Answers Single lens reflex (SLR)
Digitial Single Lens Refelx (DSLR)
Normal Lens - Answers focal length 50-55mm; used for most photographs
Telephoto Lens - Answers focal length 100 mm+; used for magnifying
Wide-angle Lens - Answers Focal lenght 35mm; used to show more than normal lens
Macro Lens - Answers Focal length less than 50mm; used for highly detailed close ups
Multipurpose Lens - Answers focal length 28-80 mm; used to take normal, wide angle &
telephoto photographs
, Aperture - Answers measure of the diameter of the opening of the diaphragm which allows light
to reach the film or microchip
Shutter speed - Answers length of time that the film or microchip is exposed to light
Depth of Field - Answers amount of area in the foreground and background of an object in focus
auto mode - Answers automatically selects f-stop and shutter speed
sports mode - Answers captures subjects in motion using higher shutter speed
night mode - Answers uses slower shutter speed to gather lots of light
Landscape mode - Answers selects higher f-stop to improve depth of field
Portrait mode - Answers lower f-stop to decrease the depth of field and make the subject stand
out
barrier filters - Answers block one specific wave length (color) of light from reaching the film or
microchip making areas of that color appear lighter in the photograph
Bypass filters - Answers allow only a small range of wave lengths of light to reach the film or
microchip and block all others
Night photgraphy - Answers requires the use of external lighting
Indoor photography - Answers requires photgraphs of the neighbourhood, poitns of entry/exit
and all walls, floors and ceilings
outdoor photography - Answers requires location of photographs to be recorded by GPS or
measurments of land marks
Arson Photography - Answers requires photographs of the point of the fires origin and use of
special equipment or techniques to provide maximum contrast in photographs of charred debris
Sexual Assault Photography - Answers requires photographs of all wounds and clothing while
showing discretion of victim
Impression photography - Answers requires oblique lighting to show details and a scale to later
create a 1:1 scale photograph for comaprison
bloodstain photography - Answers requires photographs of all pertinent stains and determined
areas
Latent finger print photographs - Answers require photographs with a 1:1 scale using a special
latent finger print camera fitted ith an adapter
Computer Aided Drafting (CAD) - Answers program to create a finished sketch