A former prison officer who claimed she was unfairly dismissed after speaking out about violence and drugs at HMP Nottingham has lost her tribunal.
The tribunal panel dismissed Diane Ward's claim of unfair dismissal and detriment done on the grounds of making protected disclosures.
The reasons have not yet been published but are due to be in the coming months.
Ms Ward, 55, was dismissed for medical inefficiency in 2016.
Since then, the Chief Inspector of Prisons has ordered the government to improve the jail, describing its suicide rate as "tragic and appalling".
The Ministry of Justice has declined to comment on the tribunal.