221. Maliciously administering poison with intent to harm. Any person who, unlawfully and with intent to injure or annoy another, causes any poison or noxious thing to be administered to or taken by any person and thereby endangers his or her life or does him or her some grievous harm commits a felony and is liable to imprisonment for fourteen years. 222. Wounding and similar acts. Any person who— (a) unlawfully wounds another; or (b) unlawfully, and with intent to injure or annoy any person, causes any poison or other noxious thing to be administered to or taken by any person, commits a misdemeanour and is liable to imprisonment for three years. 223. Failure to supply necessaries. Any person who, being charged with the duty of providing for another the necessaries of life, without lawful excuse fails to do so, whereby the life of that other person is or is likely to be endangered, or his or her health is or is likely to be permanently injured, commits a misdemeanour and is liable to imprisonment for three years. 224. Surgical operation. A person is not criminally responsible for performing in good faith and with reasonable care and skill a surgical operation upon any person for his or her benefit, or upon an unborn child for the preservation of the mother’s life, if the performance of the operation is reasonable, having regard to the patient’s state at the time, and to all the circumstances of the case. 225. Excess of force. Any person authorised by law or by the consent of the person injured by him or her to use force is criminally responsible for any excess, according to the nature and quality of the act which constitutes the excess.