4. Forensic Examination If Questioned Documents Flashcards Preview

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Flashcards in 4. Forensic Examination If Questioned Documents Deck (14)
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1

Whats the scope include ?

Handwriting
signatures
printing
papers
Ink
altered documents

2

What do forensic document examiners do ?

Identify individuals fromhand writing identify signatures as genuine or fake origin and history of documents
date documents
identify altered documents
identified counterfeits

3

Facts about handwriting ?

No two adults write the same handwriting is partially taught
mature writing from 19
writing gets worse with old age
Directly observed to analyse

4

What are the handwriting styles ?

Printed - block capitals
cursive - joined up
script - cursive formed but separate letters
mixture of the last two

5

Insividualisation of handwriting

Individualised by personal characteristics
Vary with the time
some letters stay the same some letters change dimentions of letters space and direction and do not change very much

6

How do people disguise handwriting ?

Change slope or style
change some letter designs
use other hand
use a stencil
copy or trace

7

Whats needed to compare documents ?

Good controllable light
clear working surface
magnifier with scale
Low power stereomicroscope
Keeping casenotes

8

What does natural writing look like ?

Smooth, gradual transitions

9

What does unnatural writing look like ?

Rough- blunt endings and breaks

10

Whats a tram line ?

It’s where pen strokes cross

11

What do microscopic striatuons show ?

Direction of pen

12

When examinning letter structure what do we look at ?

Structure and formation of letters number order and direction of strokes
point of entry
degree of roundness
proportions of letter
point of cross bar
placing a dot
spacing of letters

13

What’s the five-point scale for conclusion

Conclusive evidence that both written by the same person

supporting evidence that both written by same person but possibly by different people

inconclusive

supporting evidence that both written by different people but possibly by the same individual

conclusive evidence that both written by different people

14

What are the three functions of document examination system

Control wavelengths of illuminating light

control the wavelength spread used to image the document

utilise the sensitivity of digital cameras to radiate im the ir spectrum