Proactive release of drug driving information on evidential thresholds

As part of Police’s concentrated efforts to implement roadside drug driving testing on New Zealand roads, rigorous steps have been undertaken to ensure Police has met the legislative requirements that would enable Police to commence in December 2025.

Police is proactively releasing information that has been the basis of our gazetting process to confirm positive evidential thresholds for use by an approved analyst to test for a listed qualifying drug that indicates recent use of those listed qualifying drugs.

This was submitted and approved by the Minister of Police in November 2025 as part of the legislative requirement under s71GA of the Land Transport (Drug Driving) Amendment Act 2025.

Releasing this document provides the scientific information that informed Police’s decision making and the scientific sources identified by the independent scientists provide clarity to avoid misinterpretation of the evidential thresholds that have been set for drug driving testing.