Handwritng Analysis
Handwriting analysis is the comparison of something like a ransom note or a kidnapping note to the samples of all the suspects, all the people involved in the crime one way or another. The handwriting analysis is done by someone who has specialized in their masters program for this specific area in the crime lab. It has been know that even in forging that no two people have identical handwriting, close but there are differences. The Forensic Document Examiner is used to determine the origin and authenticity of a document, weather it is forged or if it is a not left at the crime scene, they are the ones left in charge to determine where it came from and everything else about it.
In the soon future, handwriting will be able to be completely compared on the computers like they do on the TV shows. They will be able to overlap the writings and determine whether or not who wrote the note and forgery will be detected that way.
Handwriting Expert. Handwritingforensics.com. 5 May 2009 http://www.handwritingforensics.com/