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Could two similar signatures be copies of the same image? What does a scan leave out? Start with a question, explore an example and see how far the evidence takes you.

Handwriting and graphology (15)

Handwriting and graphology

Baseline direction

The baseline is an imaginary guide supporting the bodies of letters.

Handwriting and graphology

Choosing comparison samples

A useful sample has a known writer and contains material comparable with the questioned passage.

Handwriting and graphology

Connections and pen lifts

A visible gap and an actual pen lift are not necessarily the same event.

Handwriting and graphology

Disguised handwriting

Disguise means that the writer deliberately altered their writing. Distinguishing it from natural change requires care.

Handwriting and graphology

Graphology and personality claims

Graphology associates handwriting with personality. Each proposed link needs an independent test of its predictive value.

Handwriting and graphology

Graphology in employee selection

The historical use of handwriting in hiring raises a testable question.

Handwriting and graphology

Letter size and proportions

Absolute height and the proportions within a letter are separate observations.

Handwriting and graphology

Letter slant

Slant describes the angle of strokes relative to the writing line.

Handwriting and graphology

Line quality

Examiners consider how a stroke travels, breaks and changes along its path. With a photograph the first question is which details the image actually retains.

Handwriting and graphology

Natural variation in handwriting

A person may form one letter several ways even within one sentence. Comparison needs a range of examples rather than the nearest match.

Handwriting and graphology

Observation and interpretation

Good notes let another reader locate the detail, understand what was examined and see the limits of the inference.

Handwriting and graphology

Short signatures and initials

An abbreviated signature can contain few movements to compare. The first question is how much information it carries.

Handwriting and graphology

Which hand held the pen?

Signature slant alone cannot identify the writing hand.

Handwriting and graphology

Word and letter spacing

Gaps between words and gaps inside a word are different measurements.

Handwriting and graphology

Writing systems and languages

Writing systems differ in how signs are formed and joined. Start by identifying the script actually used in each document.