section 34(1)


34(1) A person is not guilty of an offence if (a) they believe on reasonable grounds that force is being used against them or another person or that a threat of force is being made against them or another person; (b) the act that constitutes the offence is committed for the purpose of defending or protecting themselves or the other person from that use or threat of force; and (c) the act committed is reasonable in the circumstances.