37. Preventing assault
37. (1) Every one is justified in using force to defend himself or any one under his protection from assault, if he uses no more force than is necessary to prevent the assault or the repetition of it.
Extent of justification
(2) Nothing in this section shall be deemed to justify the wilful infliction of any hurt or mischief that is excessive, having regard to the nature of the assault that the force used was intended to prevent.