(1) A person is not criminally responsible for an offence that has a physical element relating to property if—
(a) when carrying out the conduct required for the offence, the person is under a mistaken belief about a proprietary or possessory right; and
(b) the existence of the right would negate a fault element for any physical element of the offence.
(2) A person is not criminally responsible for any other offence arising necessarily out of the exercise of a proprietary or possessory right that the person mistakenly believes to exist.
(3) This section does not negate criminal responsibility for an offence relating to the use of force against a person.