The criteria for a person to be made subject to an Assessment Order are—
(a) the person appears to have mental illness; and
(b) because the person appears to have mental illness, the person appears to need immediate treatment to prevent—
(i) serious deterioration in the person's mental or physical health; or
(ii) serious harm to the person or to another person; and
(c) if the person is made subject to an Assessment Order, the person can be assessed; and
(d) there is no less restrictive means reasonably available to enable the person to be assessed.