(1) The Chief Commissioner may give a testing direction (other than a direction to give a sample of hair) to a person to whom this Division applies if the conditions in subsection (3) are satisfied.
(2) The Chief Commissioner may direct a registered medical practitioner or registered nurse to take a sample of blood for analysis for the purpose of testing for the presence of alcohol or a drug of dependence from a person to whom this Division applies if—
(a) the person is unconscious or would be otherwise unable to comply with a testing direction given under subsection (1); and
(b) the conditions in subsection (3) are satisfied.
(3) The conditions are that—
(a) the Chief Commissioner reasonably believes that the person has been involved in a critical incident (whether or not the person was physically present at the place where the critical incident occurred); and
(b) the direction is given—
(i) in the case of a critical incident referred to in paragraph (b)(ii)(B) of the definition of critical incident in section 82—within 3 hours after the critical incident occurred; or
(ii) in the case of any other critical incident—within a reasonable time after the critical incident occurred.