Forensics 3

4 make ups of paint
- Binder (lacquer, latex, enamel)
- Pigments
- Extenders
- Modifers
Physical Attributes of Paint
- Color
- Thickness
- Layer Sequence
- Condition
What does ASA or ISO indicate?

Sensitivity of film to light
CCD means

Charged Coupled Device
How to leaf and door shutters open
- Leaf-center out in a spiral motion
- door- left to right like a door
What is the aperature

How wide the lens opens
How is the aperture measured?

In F-Stops, larger the number, smaller the opening, F3>F14
What is light temperature measured in?

Kelvins
What is a slave?

A sensor that triggers a secondary flash upon sensing the first flash
Fill Flash is

used to highlight shadowed areas
3 extreme conditions when photographing and problems they present
- Snow- VERY reflective
- Sand- Somewhat reflective
- Aftermath of Fire- blackened remains absorb light
SWGIT stands for

Scientific Working grou on Imaging Technology
Steps for maintaining digital images as evidence
- Upload images to folder
- Burn all images to a Cd label it MASTER COPY
- put CD in case w/ case #, date and initials
- Place in evidence envelope
- Seal and mark as real evidence
- Use files on comp to burn extra copies
Whats better JPG or TIF? why

TIF, it is uncompressed
2 types of shoe prints
- 2-D and 3-D
- 2-D is like in dust
- 3-D is like in mud
Info foot evidence tells us
- Identification
- Elimination
- # of ppl at scene
- Shoe size info
- Shoe brand info
2 ways to enhance footprints
- Latent powders
- Chemical treatments

Author

missancy

101817

Card Set

Forensics 3

Description

FS 3

Updated

2011-09-15T02:33:01Z

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