Frankie Dettori is set to face a France Galop inquiry next week after testing positive for a banned substance at Longchamp in September.
Solicitor Christopher Stewart-Moore released a statement on behalf of Dettori revealing the news that the Medical Committee of the French authority are planning a hearing.
The statement, issued to Press Association Sport, said: "On behalf of Frankie Dettori I can confirm that, as a consequence of a positive test at Longchamp on September 16 2012, he will be the subject of an inquiry by the Medical Committee of France Galop next week."
It continued: "In compliance with, and out of respect for, the regulations of France Galop, he will not be commenting further until the France Galop procedures have been completed."
Dettori had four rides at Longchamp on September 16, a day of major trials for the Arc meeting the following month, including Marco Botti's Joshua Tree, who was third in the Prix Foy, and John Hammond's Sarah Lynx, who finished last in the Prix Vermeille.
His other two rides were for Godolphin, going down by just a head on Farhh in the Prix du Moulin won by Moonlight Cloud, and finishing third on Willing Foe in the Prix Gladiateur.
France Galop have not commented on proceedings and in previous similar cases they have not issued a statement before a hearing.
The Italian made the headlines last month when his 18-year association with Godolphin came to an end, with the three-times champion jockey planning to ride as a freelance in 2013.
Bookmakers Stan James have removed him from their betting for next year's jockeys' championship, for which he was a 12-1 shot.
Dettori would not be the first high-profile jockey to fall foul of the French authorities, Kieren Fallon having been banned for six months in 2006 after returning a positive test for a metabolite of a banned substance, and receiving a further 18 months after a second positive in August 2007.
20 October 2014No rushing back for Long Run
Dynaste leads Old Roan contenders
Grands Crus retired
Chelmsford City handed 58 fixtures
Exciting Berlais heads to Chepstow
Force handed Hong Kong mission
Park favourite for Trophy hunt
Al Kazeem team eye Hong Kong trip
Alderwood to take two-mile test
Dynaste leads Old Roan contenders
Commemorative bound for Breeders'
Hennessy aim for Clouds
Slade eyeing victorious swansong
Fiesolana on Breeders' trail
High-class possibilities for Trophy
Chelmsford City handed 57 fixtures
French option for Maarek
Billy back for chasing bow
Judge to bid for Breeders' glory
Pipe mulls Moon target
High hopes for Holywell
Judge in Breeders' frame
Hill stars for Stoute and Moore
Gabriel lifts Garnet for Deegan
New One back with a win
Light career hangs in balance
Stars shines on hurdling debut
King big guns ready to start
Tullius camp consider options
Doyle unlikely to appeal Ascot ban
Mullins prepares formidable team
19 October 2014New One breezes to victory
Lavelle has Becher plan for Lodge
Riches heading on road north
Down Royal plan for Tiger
New makes Kempton return
Panther hunting Canadian prize
Sun takes a shine to Cork
Hobbs upholds Showcase record
Another gold strike for Bronze
Gallant Noble a true Champion
Head turns on Charm in QEII
Madame is Ascot leading lady
Forgotten rules for Weld
Byron is poetry in motion
18 October 2014Forgotten rules for Weld
War misses Breeders' date
Rakti reaps Caulfield reward
Chatez bids for Balmoral crown
Lavelle duo top Cheltenham card
Integral takes on the boys
Noble on Champion mission
Belardo a Dewhurst sparkler
Together stands firm for Ballydoyle
Ivawood felled by plucky Thought
Crowley doubles up on Berkshire
Tendon injury sidelines Tent
17 October 2014Minstrel calls the tune
Sceaux set for chase campaign
Sari seeking Ascot gold
Charm out to show winning Spirit
Estimate aiming to go the Distance
French veteran back for more
O'Meara - G has the Force
Fallon considers American switch
Cossack maintains Elliott's record
Vautour goes chasing
Lucida heads Godolphin trio
McCoy sits out weekend action
No Middle ground for classy Ivawood
Big guns hold sway for QEII
Cirrus stands firm for Champion
Hanagan: Estidhkaar no soft touch