Sky City is adamant an employee who carries a Bible at work will not lose her job - but she may receive a warning.
Unite Union says Tuni Parata, who has worked at Sky City for 16 years, is being ordered to attend a disciplinary meeting on Thursday this week - and is being threatened with dismissal.
The union wants the action against her dropped.
Spokesman Mike Treen says Ms Parata carries the Bible because it takes too long to get to the staffroom during breaks, and has labelled the action "absurd".
But Grainne Trout from Sky City says there is a reason she has been pulled aside.
“As a general principle staff in customer service roles are in breach of Sky City’s uniform standards if they carry items such as personal mobile phones, books and any other items that might interfere with their full engagement with their customers,” says Ms Trout.
"The media comments by Mike Treen are alarmist and they don't fairly reflect the situation. A breach of uniform policy such as this is not considered serious misconduct and it would not be expected to result in the dismissal of any staff member."
Ms Parata says carrying a Bible at all times is an important part of her faith and relationship to God.
Ms Trout will not comment on Sky City's discussions with Ms Parata.
Jane Luscombe will have more on the story at 6pm.
RadioLIVE / NZN