You can be convicted of forgery under California law if you "knowingly alter, create, or use a written document, intending to commit a fraud. You acted so planning to commit fraud.A forgery crime can be as simple as altering or counterfeiting a document that benefits the accused and takes advantage of the victim. There are many names for a Forensic Document Examiner. Handwriting expert, handwriting analyst, forgery expert, and handwriting specialist. Forgery typically is defined as writing or altering a document with the intent to defraud.