> "How do you stop people obtaining it and using it through their buddies on the internet" - quite simply, by telling them they'd go to jail, or get a hefty fin

> "How do you stop people obtaining it and using it through their buddies on the internet" - quite simply, by telling them they'd go to jail, or get a hefty fine, for doing that. That method does not work very well for e.g. weed.