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University of Nebraska, Lincoln *
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Apr 3, 2024
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Questioned Documents
PRE-LAB QUESTIONS
1.
List three features of handwriting used in forensic analysis
. 3 features are complex letters, slants, start and stops.
2.
What tools or information does an examiner need to analyze a questioned document? Microscopes, databases of the questioned document (knowns), ALS’s, and digital imaging equipment are a few examples of tools or information that could be used to investigate the questioned document.
© eScience Labs, 2016
Questioned Documents
EXPERIMENT 1: HANDWRITING ANALYSIS Data Tables
Table 1: Handwriting Exemplars and Forgeries
Exemplar
Forgery
1: Ellis H. Roberts
2: John Burke
3: Charles Francis Adams
© eScience Labs, 2016
Questioned Documents
Post-Lab Questions
1.
List three observations about Exemplar 1 that make it unique.
2.
List three observations about Exemplar 2 that make it unique.
3.
List three observations about Exemplar 3 that make it unique.
4.
Examine the high point and low point lines that you drew with the ruler across the top and bottom of each exemplar and forged signature. Describe two similarities and two noticeable differences between them.
5.
Did you forge every signature in one motion or did you stop while signing? Discuss all three signatures.
6.
Use a hands lens to check if your forgeries have resting dots. If so, how many did each name have? 7.
In this exercise, you analyzed one exemplar. What would you do differently if you were performing an actual handwriting analysis?
© eScience Labs, 2016
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Questioned Documents
EXPERIMENT 2: CHROMATOGRAPHY OF INKS Data Tables
Table 2: Ink Chromatography Results
Ink Sample
Number of Bands
Color and Description of Bands
uni-ball
®
Paper Mate
®
Will Signature
Pen Sample (Student Chooses)
Pen Sample (Student Chooses)
Post-Lab Questions
1.
How many color bands did each ink pen produce?
2.
Can any of the pens be excluded as the possible writing utensil used to commit the forgery? Use your data to support your answer.
3.
Can any of the pens be included as the possible writing utensil used to commit the forgery? Use your data to support your answer.
4.
Why can the pens only be included or excluded as possible writing utensils and not stated to be the exact pen used to commit the forgery? 5.
List two other properties of the will that can be tested to investigate the alleged document forgery.
6.
List the brands and colors of pens you chose to test and your banding results.
© eScience Labs, 2016