A high speed vessel operator's failure to investigate and address the causes of a series of serious back injuries to passengers has earned it a conviction, fines and reparation totalling $270,000, following a prosecution by Maritime New Zealand (MNZ). Intercity Group (NZ) Limited, owners of the Paihia-based high speed vessel Excitor III, was today sentenced in the Auckland District Court after earlier admitting two separate but identical charges under the Health and Safety in Employment Act (HSEA), relating to incidents in the Bay of Islands on 12 January and 22 March 2011 respectively. The two charges, both under sections 15 and 50…