A person may not drive or attempt to drive a motor vehicle while—
(a) impaired; and
(b) that person's blood contains evidence of the use of a qualifying drug.
Section 11A: inserted, on 1 November 2009, by section 6 of the Land Transport Amendment Act 2009 (2009 No 17).
Section 11A heading: amended, on 1 November 2009, by section 5(1) of the Land Transport (Enforcement Powers) Amendment Act 2009 (2009 No 36).
Section 11A(b): substituted, on 1 November 2009, by section 5(2) of the Land Transport (Enforcement Powers) Amendment Act 2009 (2009 No 36).