"No person shall be held to be guilty of a criminal offence on account of any act or omission that did not, at the time it took place, constitute such an offence, and no penalty shall be imposed for any criminal offence that is more severe in degree or description than the maximum penalty that might have been imposed for that offence at the time when it was committed."
"If any person is charged with a criminal offence then, unless the charge is withdrawn, he shall be afforded a fair hearing within a reasonable time by an independent and impartial court established by law."