Right. So, what the Supreme Court said was that the problem with that approach is that you have to have a degree of fault to convict somebody. You can't convict somebody who, for example, went to see a doctor, got a prescription, took their medication, had a completely unforeseen result and ended up doing something that they didn't even have any control over.
The legislation, as it stood, was not narrowed tightly enough to exclude those people, and the prosecution argued that the legislation shouldn't be read as including those people but should only be read as including those people who took substances negligently in a situation where there was a foreseeable risk that they could hurt somebody if they took them. It wouldn't catch those other people.
The Supreme Court said two important things. The first was that it didn't agree that that's what the legislation says. It said that it's written too broadly and catches everybody and is not narrowly tailored to just those people who exhibit that moral fault.
The second thing the Supreme Court said is even more important for your purposes. It hinted pretty strongly that, were you to draft legislation that was narrowly restricted to those who were negligent in the act of consumption, notwithstanding the constitutional concerns about convicting somebody for an offence that they committed when they weren't in control of their body, because of the very pressing concerns surrounding intoxicated violence, it may let that pass. That was the impetus for you to go back to see if you could put together a piece of legislation that did restrict liability to those who exhibited that degree of negligence: who consumed substances in circumstances to a degree or to an extent to which there was a foreseeable risk that there could be a violent loss of control.