The Public Servants Association (PSA) on Tuesday condemned the National Prosecuting Authority's plans to appeal against a Labour Appeal Court ruling on job upgrading.
Last month the court found in favour of the PSA, which had objected to the NPA's decision to phase in job upgrading.
The association opposed the phased-in implementation of the upgrade.
"The PSA was dismayed to learn that the State Attorney's Office, on behalf of the NPA, has lodged an application to the Supreme Court of Appeal seeking special leave to appeal the Labour Appeal Court's judgment," said PSA spokesman Danny Adonis.
"This evaluation in question was conducted some seven years ago and the outcome from the labour appeal court was awaited by the PSA for more than a year."
The association was surprised that the NPA was willing to engage in further litigation at taxpayers' expense, he said.
The NPA could not be immediately reached for comment.