This bill, unlike National's proposal, doesn't simply list drugs that people think do harm; it takes into account the Independent Expert Panel on Drug Driving's recommendations and lists a number of substances with a specific high risk blood concentration level. Things like lorazepam, which is a benzodiazepine, that treats anxiety; things like tramadol, codeine, and morphine, which are commonly used pain medications, which do have a known effect on drivers' ability to respond to threats; and zopiclone, which treats difficulty in sleeping. These are all commonly used drugs. They do have an effect on drivers, and this approach in this bill shows that we are taking a harm minimisation approach to all drugs, which doesn't just single out those drugs that people think do harm; it really takes into account the drugs that are doing harm on our roads.