Mental Health Commission

Legislation

The Mental Health Commission (Commission) is the agency principally responsible for assisting the Minister for Mental Health (Minister) in the administration of the Mental Health Act 2014 and the Alcohol and Other Drugs Act 1974.

Mental Health Act 2014

The mental health law in Western Australia is the Mental Health Act 2014. It relates to:

  • when a person can be provided with mental health treatment
  • the criteria for referring a person for an examination by a psychiatrist
  • when a person can be made an involuntary patient on an inpatient treatment order or a community treatment order
  • how inpatient treatment orders and community treatment orders operate
  • the rights of persons with mental illness and their personal support persons.

The Mental Health Regulations 2015 prescribe, and further clarify, certain provisions in the Mental Health Act 2014.

Statutory Review of the Mental Health Act 2014

As the agency principally responsible for assisting the Minister in administering the Act, we were tasked with conducting the Statutory Review of the Act, which began in 2021.

The Commission undertook a six-month public comment period, which opened on 13 August 2021 and closed on 31 January 2022, supported by the release of a Discussion Paper.

The Review concluded in early 2024 with the Review Report and Government Response tabled by the Minister in Parliament on 16 April 2024. All 54 recommendations about legislative amendments were accepted in principle by the State Government. 

Download Review Report 

Next Steps

The Commission will begin planning for the development of legislation to make amendments to the Mental health Act 2014, in response to the Review Report. This will include undertaking consideration of any implementation requirements and non-legislative system improvement measures that also formed part of the Review Report.

Alcohol and Other Drugs Act 1974

The Alcohol and Other Drugs Act 1974 is a statute that relates to:

  • providing treatment, management, care and rehabilitation of persons experiencing alcohol or other drug use problems or co-occurring health issues, including persons who have, or may have, a mental illness
  • promoting and subsidising research into, and education on, the causation, prevention, reduction and treatment of alcohol and other drug use problems and co-occurring health issues, such as mental illness
  • establishing and maintaining a coordinated focus on alcohol and other drug use and mental illness, and for related purposes.

The Criminal Law (Mental Impairment) Act 2023 (CLMI)

The Criminal Law (Mental Impairment) Act 2023 (CLMI) received Royal Assent on 13 April 2023 and will be enacted on 1 September 2024. CLMI establishes new legal provisions for people who are unfit to stand trial or found not guilty by reason of mental impairment in the criminal justice system.

When CLMI commences, existing people (Supervised Persons ) under the existing Criminal Law (Mentally Impaired Accused) Act 1996 (CLMIA) will be transitioned to CLMI. These transitional proceedings managed by the Department of Justice will include individual case reviews by the Mental Impairment Review Tribunal (MIRT).

The purpose of CLMI is to:

  • make provision in relation to criminal proceedings involving persons with mental impairment
  • provide for special criminal proceedings for persons who are unfit to stand trial
  • provide for the supervision of persons who, in special criminal proceedings, are found to have committed and offence
  • provide for the supervision of persons acquitted on account of mental impairment; and to provide for the safe reintegration into the community of persons supervised under this Act
  • repeal the Criminal Law (Mentally Impaired Accused) Act 1996 and the Criminal Law (Mentally Impaired Accused) Regulations 1997; and for related purposes.

The Commission is working collaboratively with a number of agencies to ensure that the community is advised and supported with the implementation of CLMI.

Where do I get more information?

Below is a list of mental health agencies and other services associated with the implementation and management of CLMI.

Expand the accordions below to view websites, online training and other relevant resources.

Page last updated7 May 2025

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