22Meaning of " mental nursing home "
(1)In this Act " mental nursing home " means, subject to subsection (2) below, any premises used, or intended to be used, for the reception of, and the provision of nursing or other medical treatment (including care, habilitation and rehabilitation under medical supervision) for, one or more mentally disordered patients (meaning persons suffering, or appearing to be suffering, from mental disorder), whether exclusively or in common with other persons.
(2)In this Act " mental nursing home " does not include any hospital as defined in subsection (3) below, or any other premises managed by a government department or provided by a local authority.
(3)In subsection (2) above, " hospital " means—
(a)any health service hospital within the meaning of the [1977 c. 49.] National Health Service Act 1977 ; and
(b)any accommodation provided by a local authority and used as a hospital by or on behalf of the Secretary of State under that Act.