1. Documentation Analysis
Review

2. Reminders Documentation Analysis Test is this Friday.
Your Lab Report is also due Friday.
Culminating Project due Friday.
All late or missing work for this unit will be accepted no later than Friday.
Group Evaluations
Article Summaries

3. Reminders
If you were absent and unable to make up an activity done in class, I have an alternative assignment you can do to make it up.
Remember: You receive a zero for activities done in class while you are absent unless you bring an absence excuse.

4. Reminders
Those of you who need to finish up yesterday's lab will have time to do so today.
Those of you who still haven't taken the quiz will do so before leaving here today.
From now on, there will be an alternative test for those who are absent so that I can return the graded tests to those who took it.

5. Documentation Analysis
Questioned Documents - suspicious documents
Forgery- fake
Alteration - change made to a document
Authenticate - prove to be real
Writing Process - 3 parts
1) Writing Surface - paper
2) Writing Instrument - pen
3) Transfer Medium - ink

6. Analysis of Paper Look at: Tools used: color magnifying glass finish
weight
thickness
fiber pattern
watermark
Tools used:
magnifying glass
microscope
scale
UV light

7. Analysis of Pencil Tools used: Look at: putty thickness
magnifying glass
Look at:
thickness
darkness
distinctness
graphite drag

8. Analysis of Type Look at: size shape style spacing Tools used:
make and model comparisons
magnifying glass

9. Analysis of Ink Look at: Ink Composition - what is it made up of?
Dyes - liquid color
Pigments - solid color in solution
Tools used:
Chromatography (Paper, TLC, HPLC)
UV light

10. Recognition, Collection, and Preservation of Evidence
Wear gloves
Protect with plastic cover sheet
Determine which test to be performed
What order should tests be performed?
Is other trace evidence present?
(fingerprints, DNA, fibers)
Contemporaneous - happened at the same time

11. Types of Documents Commonly Forged
checks/money orders
promissory notes
court seals and records
securities/stocks/bonds
wills/contracts/public records
corporate documents
currency
documents for identity theft

12. Handwriting Analysis Look at: line quality word and letter spacing
size
continuity
letter connection
letter completion
style
pen pressure
slant
line habits
flourishes/embellishments
diacritic placement

13. Handwriting Analysis Normal Variation - changes in a person’s writing
Collected Writings - old writings (natural)
Requested Writings - writing asked for (on the spot)

14. Analysis of Erasures Obliteration - another word for erasure
Ink eradicator - bleaches out writing
Look at:
disturbed fibers
thinner spots
Tools used:
powder
iodine fuming
light box

15. Analysis of Indentations
Indentation - impressions left behind by writing
Tools used:
Rubbings
Spectral Comparator
Oblique Lighting
Electrostatic Detection Apparatus

16. Invisible Inks Developed by chemicals vinegar (by red cabbage water)
ammonia (by phenolphthalein)
iron sulfate (by potassium ferricyanide)
starch (by iodine)
lemon juice (by iodine)
Developed by heat
lemon juice
vinegar
baking soda
milk
bodily fluids
sugar solution
Visible under UV light
detergent
bodily fluids
vitamin B-12
tonic water

17. Study Guide
Due before you take your test, along with your second half of flashcards.
This stuff isn't too hard ladies, take some time and familiarize yourself with it, you'll do fine!