The Third Appellate District issued a peremptory writ of mandate. The court held that a whistleblowing former employee who was accorded quasi-judicial hearing by the state personnel board, at which he could submit evidence, name witnesses, and argue his claim, was collaterally estopped from relitigating the board’s findings in a civil action for damages.

Gary Trobee worked for the California Public Employees’ Retirement System (PERS). Trobee claimed he resigned from state service as a result of his supervisor’s retaliatory conduct.