"It is of some significance that a defendant who is alleged to have acted in breach of a restraining order contrary to section 5(5) of the 1997 Act has the protection that the prosecution must prove that he or she has acted 'without reasonable excuse'. Thus, for example, there may be cases where there is room for legitimate differences of view as to the meaning of a restraining order. If in such a case the defendant raises the issue that he or she believed that the conduct of which complaint is made was permitted by the order, the prosecution will have to prove that he or she did not have reasonable excuse for the prohibited conduct. Acting under a reasonable misapprehension as to the scope or meaning of the order is capable of being a reasonable excuse for acting in a manner which is prohibited by the order."