The accusations against the businessman, who cannot be identified, would be sure to reignite the #MeToo movement against the mistreatment of women, minorities and others by powerful employers.

#MeToo became a worldwide social media campaign last year after revelations about Harvey Weinstein, the American movie mogul. Like Weinstein, the British businessman used controversial non-disclosure agreements (NDAs) to silence and pay off his alleged victims with "substantial sums".

NDAs have been commonly used in business to protect matters of commercial confidentiality but there are concerns they are now being abused to cover up wrongdoing and deter victims of potential crimes from going to police.

Theresa May has already indicated that she plans to restrict the use of NDAs to prevent abuse, but Parliament has yet to consider changes to the law and campaigners are urging the Prime Minister to act now.