A Goodwin Procter partner appointed to conduct a review of Apple's competition policies has hit back at the company after the tech giant argued he had gone beyond the remit of his appointment and charged exorbitant fees.

In a declaration filed this week, Goodwin white collar partner Michael Bromwich reveals a series of email exchanges which he argues shows obstructive behaviour by the company.

Bromwich was appointed by a New York court in October to monitor the company's competition practices, following a ruling in July that Apple conspired with five publishers to fix e-book prices.