Waaka v Police - [1987] 1 NZLR 754

Criminal law — Offences — Assault on a constable in the execution of his duty — Constable took hold of the arm of defendant's companion and wrongfully detained him — Defendant assaulted constable — Whether constable had been assaulted in the execution of his duty — Whether mens rea goes to all the ingredients of the offence — Summary Offences Act 1981, s 10.