Employment Relations Act 2000, s 103(1)(j); Health and Safety at Work Act 2015, s 89
You can bring a personal grievance if your employer fires you or otherwise treats you unfairly to get back at you for some action you’ve taken relating to health and safety, including if you:
stopped work on health and safety grounds
raised health and safety issues
talked to a health and safety inspector.
See the “Resolving Employment Problems” chapter, under “Health and safety: Retaliation because you stuck up for your rights in the workplace”.