The FIA's hearing into last month's contentious Mercedes and Pirelli tyre test got under way in Paris this morning.
The Brackley-based F1 outfit are appearing at the tribunal after they appeared to contravene the FIA's ban on in-season testing by their current car and regular drivers in a three-day, 1,000-kilometre test held in conjunction with Pirelli in May.
Team principal Ross Brawn was a witness for the Mercedes delegation, with Pirelli motorsport director Paul Hembery appearing for the Italian tyre manufacturer.
Legal representatives of Ferrari, McLaren and Williams were also in attendance, as was Red Bull team principal Christian Horner.
More top news
A gang of ram raiders have been sentenced to 22 years for carrying out a terrifying series of thefts at shops and banks across the region.
Norwich City midfielder Wes Hoolahan admits that the Canaries squad are "working a lot harder" under new manager Alex Neil.
Lotus is launching a new sports car at the Geneva Motor Show today that will help create new jobs at its base in Norfolk.