The Guardianship Board, established by the Mental Health Act of 1963, replaced the Mental Deficiency Board in 1963. Its purpose was to assume the guardianship of people with an intellectual disability or mental illness. It also advised the Minister about the care, treatment and occupations of people suffering from an intellectual disability or psychiatric illness. The Guardianship and Administration Board replaced the Guardianship Board in about 1995.
The Guardianship Board had five members. In 1963, they were the Director of Social Welfare, the Director of Psychiatric Services and three others, one of whom had to be a woman, and the other, a medical practitioner with experience in diagnosing and treating mental illness. In 1965, eighty people came under the auspices of the Guardianship Board.
The Guardianship and Administration Act of 1995 replaced the Guardianship Board with the Guardianship and Administration Board.