Ministry of Transport v Hughes - [1991] 3 NZLR 325

Transport and transport licensing — Offences — Exceeding speed limit — Appellant was found guilty of exceeding speed limit as detected by microwave speed detection device — Whether Court could take judicial notice of dependability of device — Whether certificate of accuracy created only a rebuttable presumption that device was accurate — Whether prosecution was required to prove that device was used correctly — Transport Act 1962, s 197.