R v Brown (1993)
“ The argument on both sides has proceeded on the basis of earlier authorities that bodily harm means any hurt or injury that is calculated to or does interfere with the health or comfort of the subject but must be more than transient or trifling, that grievous bodily harm means really serious bodily harm and that wounding involves the breaking of the whole skin. Common assault would include any physical touching which did not fall within these categories. ”
