Handwriting identification requires an adequate quantity of known genuine handwriting for comparison with questioned or disputed handwriting. In addition, it is important that these known handwritings are of good quality.
Obtaining Handwriting Specimens for Comparison
It is recommended that the following factors be considered when obtaining known comparison handwriting:
- Genuine handwriting written from around the date of the questioned handwriting.
- Genuine handwriting written under the same alleged or known circumstances and written on similar materials.
- Genuine handwriting written with a similar writing instrument (ball point pen, fountain pen, roller ball pen, pencil, etc.).