Midterm Flashcards
What are the 3 sections of the palm?
Thenar, hypothenar, interdigital
Where is the interdigital area of the palm?
Below the fingers
Where is the thenar area of the palm?
Base of the thumb
Where is the hypothenar area of the palm?
The side of the palm
What are the key elements of WHMIS?
Hazard classification, cautionary labelling of containers, the provision of safety data sheets (SDSs) and worker education and training programs
What does WHMIS stand for?
Workplace Hazardous Materials Information System
What is the worker’s responsibility in WHMIS?
Participate in the education and training programs and to use this information to help them work safely with hazardous products
What does SDS stand for?
Safety Data Sheets
What are the 4 main purposes of SDS?
It provides information on:
1. Identification of the product and supplier
2. Hazard identification
3. Prevention
4. Response
Exploding bomb WHMIS symbol
Explosion or reactivity hazards
Gas cylinder WHMIS symbol
Gases under pressure
Starburst in lungs WHMIS symbol
Health hazard - may cause or suspected of causing serious health effects
Flame WHMIS symbol
Fire hazard
Corrosion WHMIS symbol (test tubes pouring)
Corrosive damage to metals, skin, and eyes
Exclamation mark WHMIS symbol
May cause less serious health effects or damage the ozone layer
Flame over circle WHMIS symbol
Oxidizing hazards
Skull and crossbones WHMIS symbol
Can cause death or toxicity with short exposure to small amounts
Environment WHMIS symbol
May cause damage to the aquatic environment
Biohazards infection materials WHMIS symbol
Organisms or toxins that can cause diseases in people or animals
What should you do with your bench notes if using a forensic light source?
Indicate the wavelength or filters used and results
Sequential Processing
A process used to examine an item in a methodical and systematic approach
What are the first 3 steps of sequential processing?
Visual examination, white light, forensic light source
Luminescence
Emission of light
Specular Light
When light strikes a smooth surface and reflects at the same angle and parallel
Biometrics
Using unique biological measurements or features to identify individuals (bio=life and metric=measure)
What are the 2 methods of obtaining data for an AFIS system?
Inked tenprint sheets scanned into the system. Livescan digitizes impressions loaded directly into AFIS.
What is the purpose of automated fingerprints for law enforcement?
Determine if a person has a previous criminal record and conduct searches of crime scene prints
3 Fundamental Stages of AFIS
Data acquisition, feature extraction, decision making
ER spectrum visible light range
Red to violet. Red at 700 nm and blue at 400 nm.
What are the lines/creases in your palm called?
Flexion creases
Which way does the radial longitudinal crease run?
Curves along the border of the thenar area of the palm, forming a semicircle
Vestige
An area at the top of the thenar with friction ridges running perpendicular to the flow of thenar ridges
Starburst and where
The webbing between the thumb and index finger that doesn’t often contact a substrate
Where would you find loops and whorls on the palm?
Hypothenar area
Light through glass does what
The intensity is reduced and absorbed by the glass, it bends and refracts into the air
E Lines
Found on the outside (ulnar) edge between the base of the little finger and the distal transverse crease. Usually 3 short parallel creases that look like an E.
What wavelength is red light?
700 nm, a lower frequency and less energy
M Crease on Palm
Major flexion creases are the largest creases of the palm, and often resemble the letter M
What wavelength is blue light?
400 nm, a higher frequency and more energy
AFIS Data Acquisition Stage
Senses fingerprint to be recognized
AFIS Feature Extraction Stage
A pattern is extracted from the sense image
AFIS Decision Making Stage
Information is extracted from the recognized image is compared with images stored in the system
