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Class & Individual Characteristics of Handwriting
Learn how forensic experts analyze handwriting by identifying class characteristics (common writing features) and individual characteristics (unique traits) to compare and identify a writer. ✍️
QUESTIONED DOCUMENT
Rahul
3/8/20261 min read
Class & Individual Characteristics of Handwriting
Class Characteristics
Line Quality
Smooth vs. shaky lines indicate writing skill and speed.
Baseline Alignment
Writing may follow, rise above, or fall below the baseline.
Consistent alignment is a class trait; erratic alignment may be individual.
Pen Pressure
Light, medium, or heavy pressure.
Pressure affects ink flow and line thickness.
Size of Letters
Large, medium, or small letters reflect training and sometimes personality.
Consistency in size is a class trait; variation may be individual.
Spacing
Space between letters, words, and lines.
Uniform spacing is often taught; irregular spacing may be personal.
Slant
Letters may slant right, left, or be upright.
Slant is often culturally influenced and taught in schools.
Movement
Refers to which part of the arm is used: fingers, wrist, forearm, or shoulder.
Finger movement is common in beginners; forearm movement is smoother and more skilled.
Individual Characteristics
Letter Formation
Unique ways of forming letters, especially unusual strokes or loops.
Deviations from standard forms are highly individual.
Connecting Strokes
How letters are joined—continuous, broken, or mixed.
Some writers connect all letters; others lift the pen frequently.
Pen Lifts
Frequency and location of pen lifts.
Excessive lifts may suggest copying or unnatural writing.
Cursive vs. Print
Some writers mix cursive and print styles.
This hybrid style is often unique.
Flourishes and Embellishments
Extra loops, curls, or decorative strokes.
These are often unconscious and highly personal.
Diacritic Placement
Position of dots on “i” and crosses on “t”.
Consistent placement is a strong identifier.
Size Consistency
Variation in letter height and width.
Inconsistent sizing may reflect emotional state or personality.
Speed and Rhythm
Fast writing is fluid; slow writing may show hesitation.
Rhythm reflects confidence and familiarity with writing.

Class & Individual Characteristics of Handwriting
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