The corporate regulator spent more than $2 million on external advisers in building and fighting its largely rejected Federal Court case against ad-land personality Harold Mitchell and former Tennis Australia president Stephen Healy.

Following a Freedom of Information request by The Australian Financial Review for the costs the Australian Securities and Investments Commission paid to external services suppliers, such as lawyers, advisers and others in relation to its case against Mr Healy and Mr Mitchell, the corporate regulator compiled a single document, which previously did not exist.