USE OF FORCE TO PREVENT COMMISSION OF OFFENCE.

(a) to prevent the commission of an offence

(i) for which, if it were committed, the person who committed it might be arrested without warrant, and

(ii) that would be likely to cause immediate and serious injury to the person or property of any one; or

(b) to prevent anything being done that, on reasonable grounds, he believes would, if it were done, be an offence mentioned in paragraph (a). [R.S., c.C-34, s.28.]