What are the consequences of an acquittal on the grounds of insanity?

I would also refer to Regina v. Lappin, an Ontario decision which to my knowledge has not been reported. In that case the charge was one of attempted murder and the defences were insanity and drunkenness. In discussing the law of insanity, the learned trial judge, Haines J., informed the jury of the consequences of an acquittal on the ground of insanity in these words: "He can be found not guilty by reason of insanity in respect to the main and the included offences. If you find that at the time the accused was insane, you will return a verdict of not guilty by reason of insanity and the law then requires me to send him to a hospital for the criminally insane where he will remain at the pleasure of the Lieutenant Governor; in other words, until he is cured or is safe to be allowed to return to society."