To explore current and potential upcoming legal provisions concerning advance healthcare directives in psychiatry in Ireland, with particular focus on clinical challenges and ethical issues (e.g., self-harm, suicide).

Review and analysis of selected relevant sections of the Assisted Decision-Making (Capacity) Act 2015, Assisted Decision-Making (Capacity) (Amendment) Act 2022, Mental Health Act 2001, Mental Health Bill 2024, and Criminal Law (Suicide) Act 1993, and relevant publications from Ireland’s Medical Council and Decision Support Service.

The Assisted Decision-Making (Capacity) Act 2015 outlined new procedures for advance healthcare directives. The Assisted Decision-Making (Capacity) (Amendment) Act 2022 specified that advance healthcare directives relating to mental health are binding for involuntary patients unless involuntary status is based on Section 3(1)(a) of the Mental Health Act 2001 (i.e., the ‘risk’ criteria). The Mental Health Bill 2024 proposes making advance healthcare directives binding for all involuntary patients. In relation to suicide and self-harm, the Criminal Law (Suicide) Act 1993 states that ‘a person who aids, abets, counsels or procures the suicide of another, or an attempt by another to commit suicide, shall be guilty of an offence’, and the Decision Support Service advises that healthcare professionals are exempted from criminal liability if complying with a valid and applicable advance healthcare directive that refuses life-sustaining treatment, even where the directive-maker has attempted suicide.

Considerable public and professional education are needed if advance healthcare directives are to be widely used. The ethical dimensions of certain advance directives require additional thought and, ideally, professional ethical guidance.