The study of graphol- ogy is not necessarily accepted as part of forensic science, but it can be used as a possible indicator of the writer's personality type. The study of graphology is.Not necessarily accepted as part of forensic science, but it can be used as a possible indicator of the writer's personality type. Forgery is the process of creating, adapting, or imitating objects or documents. Com, describes cases of examination of signatures to determine possible forgery.