Introduction: Medical Health Officers supervise medical staff on behalf of the Danish National Board of Health. The Board can impose disciplinary action on registered providers of health care.
Material And Methods: This retrospective investigation was based on case reports from 1 January 1989 to 31 December 1995 on medical staff under individual supervision because of alcohol or drug abuse, with a 3-year follow-up to 31 December 1998 in Greater Copenhagen (about 1.