No, that's 2% who plead not guilty, not because they are challenging the test. They have a right to plead not guilty, for a variety of reasons. It's not to do with the accuracy of the testing. They've just invoked their right to have the matter heard at court. The benefit we have in this state, compared with other states in Australia, is that our first offence for drug driving is an infringement, a penalty notice, so they don't have to go to court, and it's an immediate suspension of their licence for three months. That happens 9,200 times. Only 2% of those, when they get the infringement, elect to go to court and have it heard before a judge.
On September 25th, 2017. See this statement in context.