On 1 March 2025, our changes to medicinal cannabis driving in Victoria took effect.
An amendment to the Road Safety Act 1986 gives courts the discretion not to cancel a licence for medicinal cannabis patients who test positive for tetrahydrocannabinol (THC) while driving in Victoria.
Previously, patients had no ability to defend themselves and no right to natural justice.
THC’s effects last only a few hours, but roadside drug tests can detect it long after use. So, even when driving safely, patients taking medicinal cannabis can still test positive.

Medicinal cannabis driving trial left patients in limbo
In August 2023, the Victorian Government announced an 18-month medicinal cannabis driving trial to study the effects of medicinal cannabis products on driving performance.
We argued this timeline was too long and warned it would leave patients in limbo until after the next election. So, we spent months working on an interim solution.
What does this interim solution mean?
Our amendment means medicinal cannabis patients no longer face an automatic licence loss. To learn more about the new law, please see the FAQs below.
It’s important for drivers to know that it will still remain an offence for a medicinal cannabis patient to drive with cannabis in their system.
The new law simply provides a court with discretion not to cancel a drivers licence if:
- the driver has a current script, and;
- has taken their medication in accordance with their doctors’ advice.
Police must now prove the patient lacked a current prescription or failed to follow their doctor’s advice.
The new law doesn’t cover drivers charged with impaired driving. In those cases, police will charge the driver with Driving Under the Influence. Our amendment does not apply to that charge.
What happens with the police?
When drivers fail a roadside drug test and test positive for cannabis, Victoria Police can take two actions:
- issue a Traffic Infringement Notice (TIN) – which is an on-the-spot fine. Like other fines, recipients can choose to take the matter to court.
- they may elect to issue a ‘Summons to Attend Court”.
To avoid mandatory loss of licence, medicinal cannabis patients need to have their matter heard in court by one of these pathways.
If medicinal cannabis patients don’t challenge a TIN, VicRoads will automatically suspend their licence.
To avoid this, medicinal cannabis patients with a TIN must request a court hearing.
A court can still decide whether to cancel and disqualify the licence of a medicinal cannabis patient. The new law just means that licence cancellation is not mandatory.
Still more to do
This change is not a silver bullet, but it is a good interim measure which provides natural justice for medicinal cannabis patients.
Legalise Cannabis Victoria will fight until medicinal cannabis patients can drive without facing the justice system for taking their medication.
Frequently Asked Questions
Please note: This is not legal advice.
Legalise Cannabis Victoria expresses our thanks to Andrew Shears, a great lawyer, architect of the amendment and friend to the cannabis community in preparing these FAQs.





