PART II - GENERAL PRINCIPLES OF CRIMINAL LIABILITY
Omissions
7. (1) No person shall be criminally liable for any omission to act unless he or she is under a legal duty to perform the act which he or she has omit¬ted to do.
(2) A legal duty to act exists where -
(a) a person is required to do something by any provision of the law; or
(b) a person owes a duty of protection or assistance to the person affected by the omission, this duty having come into existence as a result of a natural or assumed relationship between the parties or by virtue of the office occupied by one of them; or
(c) there has been an agreement giving rise to a duty to act.
EDIT.