The Westminster complaints system which has allowed Dominic Raab to continue in his job while under investigation is "massively outdated", the former chair of the Conservative Party has warned.
Sir Jake Berry said it was “wrong” for the Deputy Prime Minister to continue in his job while facing a raft of bullying allegations.
A report into a number of claims made by civil servants is expected to be released imminently, and could come as soon as Thursday.
Mr Raab has been under investigation for months over eight formal complaints about his behaviour when Foreign Secretary, Brexit Secretary and during his first stint as Justice Secretary.
Civil servants have alleged "put the fear of God" into junior staff and some officials were "nervous" about meetings with him because they feared being screamed at.
Mr Raab's declaration of interests, published on Wednesday, shows he has employed lawyers "at his own expense" in relation to the investigation being conducted by barrister Adam Tolley.
It comes amid reports that Ministry of Justice officials are preparing to quit if Mr Raab, who is also Justice Secretary, is cleared of the allegations.
Government sources said it would be “demoralising” if he is not sanctioned following the publication of the report.
One person involved in the process described the review as “devastating” while a senior Government official said Mr Raab was “toast”, according to the Financial Times.
Mr Raab has insisted he believes “heart and soul” that he is not a bully and defended his “forthright” approach to his work.
Senior lawyer Mr Tolley is said to have been “thorough” in his handling of the investigation, having interviewed Mr Raab multiple times and spoken to or taken written evidence from a number of others current and former members of staff.
He was appointed in November to lead the probe.