Research has shown that no individual is capable of reproducing a complex body of writing, such as a signature, exactly the same way twice. The comparison process performed by a Forensic Document Examiner is to determine not only what a writer does, but also perhaps more importantly what a writer does not do. This is called their Range of Variation.
The above signatures of Melvin R. Cobb have been prepared specifically to demonstrate the concept of Range of Variation. Upon first glance, you will notice that the height and size relationships of the letter “M” are quire consistent between the six signatures shown. Upon further examination though, you will note significant variations are present within the signatures including the letter “R” and the terminal flourish of the last name “Cobb.”
These differences illustrate the importance of retaining a qualified Forensic Document Examiner when you have a case of disputed signatures. If you have a case involving a disputed signature, contact us today for more information on how we can help your case.