Earlier, Mr Raab resigned as justice secretary and deputy prime minister - and published a damning 1,100-word essay in the Telegraph.

In his resignation letter to Rishi Sunak, the former deputy PM claimed the investigation had been "flawed" and said the conclusions "set a dangerous precedent for the conduct of good government".

Politics Hub: Replacements revealed

The 47-page report compiled by independent investigator Adam Tolley examines the former deputy prime minister's behaviour in government, detailing eight accusations of bullying.

Here, Sky News rounds up the key findings of the lengthy report.

1) Raab acted in an 'intimidating' fashion - with 'persistently aggressive conduct'

The probe, undertaken by Adam Tolley KC, found that Mr Raab acted in an "intimidating" fashion with "unreasonably and persistently aggressive conduct" in a work meeting while he was foreign secretary.

Mr Tolley wrote that Raab's conduct "involved an abuse or misuse of power in a way that undermines or humiliates".

"In particular, he went beyond what was reasonably necessary in order to give effect to his decision and introduced a punitive element."

The lawyer said that Mr Raab "must have been aware of this effect", or "reasonably" should have been.

This relates to one of two upheld complaints of bullying made against the ex-minister.

What has Mr Raab said?

In his resignation letter to the prime minister, the former minister said the "two adverse findings" in the report are "flawed and set a dangerous precedent for the conduct of good government".

Click to subscribe to the Sky News Daily wherever you get your podcasts

2) Perceived 'threatening' references to Civil Service Code

While foreign secretary, Mr Raab referred to the Civil Service Code in a way that he should have known could be seen as a "threat", the report said.

Mr Tolley wrote: "This had a significant adverse effect on a particular individual (a different person from the individual who made the FCDO Complaint), who took it seriously."

This was described as a "form of intimidating behaviour, in the sense of conveying a threat of unspecified disciplinary action".

"He did not target any individual, nor intend to threaten anyone with disciplinary action," the report added. "However, he ought to have realised that referring in this way to the Civil Service Code could have been understood as such a threat."

What has Mr Raab said?

The now ex-minister stressed in a 1,100 word essay published in The Telegraph how Mr Tolley concluded that he "never once swore or shouted at officials, let alone threatened, targeted or threw anything at them".

3) He went beyond what was necessary in providing 'critical feedback'

The second upheld complaint related to Mr Raab's time in the Ministry of Justice.

It found that, on a number of occasions, at meetings with policy officials, he "acted in a manner which was intimidating, in the sense of going further than was necessary or appropriate in delivering critical feedback".

This was also described as "insulting" in the sense of "making unconstructive critical comments about the quality of work done."

Mr Tolley goes on to outline specific examples - including one in which Mr Raab described work done as "utterly useless" and "woeful".

What has Mr Raab said?

He directly rebutted this finding in his letter to Rishi Sunak, insisting that ministers "must be able to give direct critical feedback on briefings and submissions to senior officials in order to set the standards and drive the reform the public expect from us".

However, he did add: "Of course, this must be done within reasonable bounds."

Read more:
The rise and fall of the karate black belt who briefly ran the country
What has led to the deputy prime minister being investigated?
Raab 'ruined people's lives', say officials

4) Raab's use of 'physical gestures' - and banging on tables

In another paragraph, Mr Tolley says he heard a "good deal of evidence" about Mr Raab's "use of physical gestures in communication". In one case, he said: "This was put as extending his hand directly out towards another person's face with a view to making them stop talking.

"Another example of such an allegation was loud banging of the table to make a point."

However, the report stated: "I was not convinced that the DPM used physical gestures in a threatening way, although those unused to this style of communication might well have found it disconcerting."

5) An abuse or misuse of power - in a way that humiliates

In his conclusions, Mr Tolley again referred to Mr Raab's time as foreign secretary. He said that, with his "management choice", Mr Raab "acted in a way that was intimidating, in the sense of unreasonably and persistently aggressive conduct in the context of a work meeting".

Mr Tolley repeated that this involved "an abuse or misuse of power in a way that undermines or humiliates". He says it was "inevitable" that Mr Raab's behaviour was perceived in this way by the affected person.

What has Mr Raab said?

In his essay, Mr Raab stressed that the British public "expect ministers to exercise rigorous oversight over officials to prevent democratic mandates being unpicked, raise the game of underperforming parts of government, and prevent Whitehall from squandering taxpayers' money."

6) Raab cleared of swearing and shouting at staff

On another note, the former deputy prime minister was cleared of shouting and swearing at staff - as had been suggested.

Mr Tolley wrote in his report: "There was no persuasive evidence that the DPM shouted at individuals. I also conclude that he did not swear at any individual or swear more generally."