(1)  No person shall drive a motor vehicle while he is consuming intoxicating liquor.

(2)  No person shall drive a motor vehicle while any person in the vehicle is, to his knowledge, consuming intoxicating liquor.

(3)  No person shall, in a motor vehicle that is in motion, consume any intoxicating liquor.

(3A)  Subsections (2) and (3) do not apply to a person in a motor vehicle that is being used to operate a passenger transport service within the meaning of the Passenger Transport Services Act 2011 if there is a liquor permit in force under Division 3 of Part 2 of the Liquor Licensing Act 1990 in respect of that motor vehicle.

(4)  A person who contravenes any provision of this section is guilty of an offence.