DUTY TO WARN By N., Pam M.S. - April 7, 2013 The obligation of a health professional to warn a third party of potential harm by a client. See duty to protect- Tarasoff decision. DUTY TO WARN: "Joe's therapist had a duty to warn Lyn of possible harm from Joe." Related Psychology Terms DUTY TO PROTECT FILIAL RESPONSIBILITY PROFESSIONAL-CLIENT SEXUAL RELATIONS COUNTERTRANSFERENCE THIRD-PARTY PAYER LIFE INSTINCT REALISTIC ANXIETY OVERCORRECTION BARTLEY V KREMENS ACTIVE THERAPY Cite this page: N., Pam M.S., "DUTY TO WARN," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/duty-to-warn/ (accessed August 25, 2019).