One Nation leader Pauline Hanson will have to pay $250,000 in damages after defaming former senator Brian Burston on the Today Show by falsely claiming he sexually abused a female staffer in his parliamentary office.
In the Federal Court on Wednesday, Justice Robert Bromwich ordered Ms Hanson pay the penalties after "seriously damaging" Mr Burston's reputation on the Nine Network.
As well as incorrectly stating that Mr Burston sexually abused a female colleague, Ms Hanson also falsely claimed he had assaulted One Nation chief of staff James Ashby without provocation in the Great Hall of Parliament.