Recreational drug laws have created a forbidden fruit situation that needlessly romanticizes semi-dangerous substances. When grass is legal, it will be growing abundantly like the weed it is. Self responsibility is the answer, just like booze. Libertarians strongly support gun ownership as a defense against crime and tyranny. Gun control can become gun confiscation, which leaves a population defenseless against tyranny of all kinds.
Prisons punish taxpayers as well as criminals, and are graduate schools for crime.
Better to have our friends and neighbors with us, than breeding resentment, rage and crowding in prisons. No, of course not. Just because government is involved in something doesn't necessarily mean these are areas for private enterprise. Security, arbitration, restitution and rehabilitation for the real crimes of theft and assault are appropriate services for private creativity and compassion. But given the current international diarrhea of laws and tyranny, we don't need more efficient prisons to oppress people, provide slave labor, or a world-wide business lobby interested in keeping prisoners.