No, expulsion is not the answer. Nor is sending them to the Police.

Prohibition was never a sound evidence-based response to the "problem" and there is shaky ground to support the notion that our culture of using certain drugs is in fact a problem at all.

Some countries in Europe are showing a new way forward. The UK is providing pharmacotherapies for opioid-dependant persons including IV diacetylmorphine HCl........a sound response to facilitate easier long-term reduction of dosing, obviously far more desirable from patient point of view--probably could promote compliance and IV administration more closely resemble what is going on anyway and provide the kind of experience to the patient more likely to promote retention in the program.

Why can't Australia have IV pharmacotherapies including semi-synthetic short-acting lipophilic opioids.........the obvious one to start with is IV diamorphine [shortened version of name above]. The problem with things like methadone is oral administration, not lipophilic, long-acting [and more prolonged withdrawal/reduction/detox/etc].

Or maybe knock prohibition on the head. Far more people are killed by liquor and tobacco than heroin anyway. Are we pandering to the US-dominated International Narcotics Control Board? And the US government by proxy keeps up the covert pressure on Asia to maintain barbaric penalties for even possessors of small quantities of opiate or opioid drugs.