What was the Lunacy (Ireland) Act 1821?


The Lunacy (Ireland) Act 1821 formed the basis of mental health law in Ireland from 1821 until 2015.

Refer to Chronology of UK Mental Health Legislation.


Prior to the Lunacy (Ireland) Act, there had been only limited progress with establishing specialist accommodation for the mentally ill in Ireland. The only such facilities were the Eglinton Asylum in Cork and the Richmond Asylum in Dublin.


The legislation authorised the appointment of a Commission of General Control and Correspondence to have oversight of asylums in Ireland. It also gave powers to the Lord Lieutenant of Ireland to establish and operate publicly funded “district asylums” across the island of Ireland.

Subsequent Legislation

Although the Lunacy Regulation (Ireland) Act 1871 made some changes relating to Commissioners in Lunacy, the management of the Estates of Lunatics and for the protection of the property of Lunatics in Ireland, aspects of the legislation remained in force until repealed by the Assisted Decision Making (Capacity) Act 2015.

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