Road Traffic Act 1961

The following provisions apply in relation to the exercise of random testing powers consisting of the giving of a direction to stop a motor vehicle or the making of a requirement to submit to an alcotest or drug screening test:

a police officer must not give such a direction or make such a requirement unless the police officer is in uniform;

if the police officer is driving or riding in or on a vehicle at the time of giving such a direction—the vehicle must be marked as a police vehicle or must be displaying a flashing blue or red light (whether or not it is also displaying other lights) or sounding an alarm;

a police officer must not make such a requirement relating to an alcotest unless the officer has in the officer's possession, or a police officer in the immediate vicinity of the place at which the requirement is made has in the officer's possession, an apparatus of a kind approved by the Governor for the conduct of alcotests;

a police officer must not make such a requirement relating to a drug screening test unless the officer has in the officer's possession, or a police officer in the immediate vicinity of the place at which the requirement is made has in the officer's possession, an apparatus of a kind approved by the Governor for the conduct of drug screening tests;

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Despite any other provision of this Act, if a motor vehicle has stopped in response to a direction given by a police officer in the exercise of random testing powers, a police officer may delay the driver of the vehicle for as long as may be necessary to enable the police officer to ascertain whether the driver holds a current driver's licence or other authority to drive the vehicle.