More than 55 per cent of staff believe they have an unacceptable levels of stress on in the job. Even more - 60 per cent - don't believe the organisation is interested in their views and opinions and nearly 70 per cent believe that people aren't promoted on merit.
"In some police districts, the findings are even more worrying.
"In the Tasman District, only 28 per cent of staff believe police deliver on the promises they make to the public, down from 50 per cent last year, while in the Eastern District only 22 per cent do. In the Far North almost 40 per cent of police staff felt disengaged with their work."
Mr Nash also criticised police strategy, saying the latest crime statistics highlight current practice isn't working and needs an operational and strategic rethink.
"Police have been pursuing a 'prevention first' model ," he said.
"While this sounds fantastic and reads well, the results show that it isn't working as crime figures continue to rise and victimisations increase."