When we look at the particular problem that we're trying to solve here, other than alcohol, cannabis is the most commonly detected psychoactive substance in blood samples from drivers that are killed in our road crashes—23 times more likely to be involved in a fatal crash, if you're affected by alcohol, drugs, or prescription medicines when driving. And drugs and alcohol are a contributing factor to almost 50 percent of fatal crashes in Aotearoa New Zealand. Thirty percent of deaths are a result of drivers who are under the influence of drugs other than alcohol in this instance. While drug-drivers already face serious criminal penalties if they are caught, the current law makes it hard for police to carry out more tests that could deter drug-driving. Recent studies have shown that randomised roadside testing would in fact improve road safety.