Forensic and Psychological handwriting analysis are separate but related disciplines. Robert Saudek was a Czech handwriting researcher quoted in the Secret Service Document Examination course bibliography. He breaks handwriting analysis into three distinct areas:
- Experimental: a systematic study and measurement of the physical, observable features of handwriting and the material and circumstances that influence its production (paper, pen, ink, writing surface, writing conditions). How a document is written.
- Forensic: Interprets the findings of the experimental aspects according to special principles in order to determine the writer’s identity. Who wrote the document.
- Psychological: Interprets the findings of the experimental aspects according to special principles in order to discover the causes and features of handwriting, character being one. This aspect includes mental and physical health, medications and aging. Why the writing looks the way it does.
Sheila Lowe is trained in both areas of handwriting analysis. Now having more than 40 years of experience in the field, she first qualified to testify as a handwriting expert in 1985.