If a person charged with an offence against section 19 was the driver of the motor vehicle only for the reason that the person was in, and in charge of, a motor vehicle on a road or road related area, it is a defence if the person charged proves that—
(a) the person had not started, or attempted to start, the motor vehicle and had not put, or attempted to put, the motor vehicle in motion; and
(b) the person did not intend to drive the motor vehicle until a time when the concentration of alcohol in the person's blood or breath was no longer the prescribed concentration for the person.
Note The defendant has a legal burden in relation to the matters mentioned in this section (see Criminal Code
, s 59).