Putting Tefillin on a drunk: If someone is involved in encouraging other Jews to put on Tefillin and meets a Jew who is drunk or under the influence of drugs, may he put Tefillin on him?
Answer: If in his current state he is capable of ‘speaking before the King’ ( being aware of G-d’s presence) and it isn’t possible to wait until his mind is clear, you can put Tefillin on him, but if he is not capable of ‘speaking before the King’ – do not.