Fox quit as defense secretary on Friday amid scrutiny of former defense lobbyist Adam Werritty, who posed as an aide, arranged private meetings and joined 18 trips overseas.

A government official, who spoke on condition of anonymity as the report was being published later on Tuesday, said the investigation was expected to conclude Fox had broken rules on conflict of interest, but had not profited personally.

Werritty secured funding for his activities from a variety of donors, prompting concern he was using access to the minister to win influence or contracts for his backers.