The Importance of Continuous Professional Development in Handwriting Examination

Can anyone claim to be an expert in handwriting examination if their training was completed 10, 20, or 30 years ago?  Can an expert rely solely on his or her experience in handwriting examination after training, as a means of claiming skills as current?  Can an expert ignore the technological advances in the field of handwriting examination? Can an expert handwriting examiner, ignore the latest research into the discipline?