Week 6

Question 1

Philosophy of Footwear Identification

Answer 1

Footwear identification is established by the agreement of class and accidental characteristics of such significance or number that no other logical conclusion can be reached.

Question 2

Define Class Characteristics in regards to Footwear and Tire impressions

Answer 2

Intentional or unavoidable characteristics that repeats during the manufacturing process and is shared by more than one shoe or tire

1) Size (of shoe/tire and of each element)
2) Shape (of shoe/tire and of each element)
3) Tread pattern

Question 3

Footwear and tire impressions, Randomly Acquired Characteristics must…

Answer 3

Agree in:

1) Shape
2) Size
3) Location
4) Orientation

Question 4

Compression Molding

Answer 4

1) Open mold process
- Like a waffle iron

2) Can be made with 2 or more colours

Question 5

T/F - Randomly Acquired Characteristics in Die Cutting

Differences around the edge, the placement if the die within the design

Answer 5

True

Question 6

Crepe Rubber

Answer 6

Natural crepe rubber is highly individual

It is like Friction Ridge skin

Question 7

What do you include in a plan drawing rough sketch

Answer 7

1) Compass direction
2) Date/Time sketch was made
3) Precise address of location
4) Reference points used (numbers/letters)
5) Legend
6) Weather
7) Officers present at scene

Question 8

What are the 2 measuring methods for a planned drawing

Answer 8

1) Baseline amd right angle offset
- Simplest method
- Good for distances under 30m

2) Triangulation
- Very acurate method
- Better for long distances
- Uses 2 fixed points

Question 9

2 night time photography flash techniques

Answer 9

1) Slow Sync
Provides flash at the beginning of the exposure

2) Rear Sync
Allows for timed exposure and provides a flash just before the shutter closes

Both:
Flash combined with shutter speeds as slow as 30 sec

Require use of tri-pod

Question 10

Whats important not to do when using Multiple flashes away from camera

Answer 10

1) Dont position yourself between the camera and the flash

2) Never aim the flash towards the camera

Question 11

Digital Noise and Night time photography

Answer 11

1) Caused by using high ISO

2) Caused by long exposure times

Question 12

At the beginning of a crime scene video, what 5 pieces of information should you state

Answer 12

1) Date/Time
2) Location
3) File number
4) Person recording the video
5) Other persons present