Document Analysis

Question 1

Equipment

Answer 1

ESDA-Electrostatic detection analysis

• oblique light source
• infared , UV
• low power stereo-microscopy

Question 2

Examinations

Answer 2

• Individuals
• Signatures
• Document origin/history
• Document dating
• Alterations, deletions, additions
• Counterfeit documents

Question 3

Identifying individuals

Answer 3

Fingerprinting
DNA profiling
Handwriting

Question 4

Handwriting

Answer 4

• Construction of character forms
• Natural variation
• Comparison material
• other variations

Question 5

Signatures

Answer 5

• Most frequently used writing
• unconsciously produced
• Cannot use photocopies

Question 6

Types of signature forgery

Answer 6

• tracing
• freehand
• self forgery
• vulnerable signatures
• comparison material
• guided hand signatures

Question 7

Photocopies

Answer 7

• limitations

- trash/drum marks

Question 8

Printing

Answer 8

• laser printer
• inkjet printer
• dot matrix printer
• typewriter

Question 9

Examination of Ink

Answer 9

• non-destructive comparative analysis
• infared spectroscopy
• fluorescence
• Raman spectroscopy
• TLC/high performance chromatogrophy

Question 10

Examination of paper

Answer 10

• size
• thickness
• density
• colour
• finish
• biological fibres
• watermark

Question 11

Impressions

Answer 11

Deep impressions - light

ESDA - Electrostatic detection (1979)

Question 12

Erasures, Obliterations, Additions

Answer 12

• erasing damages a document
• obliterated
• ink entries