The Argentine Supreme Court ruled today that the consumption of drugs, done in a private space and without harming third parties, could not be penalized by the state. It based its ruling in the very explicit right to privacy clause of the Argentine constitution:
"The private actions of men that in no way offend the public order and morals nor harm a third party, are only reserved to God and fall outside the authority of judges".
It's one of the few times that I like seeing God in a legal document :-)