It is also alleged that the former whip boss ordered them to “jump out the window”.
A Defense Ministry official said the behavior had a “significant impact” on those people Psychological healthThey told Sky News.
They reported Sir Gavin to the relatively new Independent Complaints and Grievances System (ICGS).
This is the second complaint in a day, after a similar complaint from former whip president Wendy Morton.
Appearing at the weekend, Sir Gavin claimed she had tried to “rig us all over the place”, due to the lack of an invitation to the Queen’s funeral.
The Conservative Party has also launched a separate investigation into the letters addressed to Ms. Morton.
Sir Gavin refused to suggest that he had bullied any employee, claiming to have had “good working relations” with his “cool” officials, although he did not deny the alleged use of words.
Downing Street said the prime minister considered the allegations against one of his key allies “serious” and was considering further action.
It is believed that this could include an investigation by the Cabinet Office’s Ethics and Competence Team as to whether his behavior amounted to a violation of the Ministerial Code.
His fellow minister Mel Stride said it would be “totally unacceptable” if the minister asked a senior civil servant to “cut his neck”.