Do any Government really imagine that prison will stop people using drugs, let alone medicinally beneficial and essential ones, like cannabis?
Even though they have done no harm to anyone or anything?
As soon as they are released, they will re-offend, so in that sense it is delaying what is inevitable because it is also the essential. Just like all people that find a particular plant or medicine effective, they will use it when they can. It is a necessity.
So the taxpayers have to pay to unjustly imprison a medicinal cannabis user, which is futile - or the user has to resort to more expensive and more dangerous ineffective pharmaceuticals - which is futile.
If given the choice of financing the imprisonment or the pharmaceutical drugs, or allowing the person to produce and use their own cannabis, or a carer to do it for them, cannabis that the user claims as highly beneficial to them at no cost to the taxpayer - what would most people chose?
Everyone I ask says the third choice - let them grow safely!
So it cannot be in the public interest to imprison such a user (or in fact punish them at all) - and if it's not in the public interest, who's interest is it really in?
Can anyone on earth honestly answer that?