Presumption of culpable mental state requires accused prove lack of mens rea; mens rea must be shown beyond reasonable doubt.

Where an offence under the Act requires a culpable mental state, the court shall presume its existence in prosecution, but the accused may defend by proving absence of that mental state concerning the charged act; the statute defines culpable mental state to include intention, motive, knowledge, and belief or reason to believe, and states that a fact is proved only when believed to exist beyond reasonable doubt.

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