This document discusses the duty of mental health professionals to warn and protect potential victims when a client has made a serious threat of violence. It outlines a Pennsylvania Supreme Court decision that found professionals have a duty to warn an identifiable third party if a client presents a serious danger and has communicated a specific threat. The decision lacked clarity around what constitutes an immediate threat or serious danger of violence. Mental health professionals must carefully assess risks and balance patient privacy with community safety when such threats arise during treatment. Thorough documentation of assessment and decision-making is important.