Frankie Dettori has been suspended from riding for six months after being found guilty of taking a prohibited substance, his legal representative Christopher Stewart-Moore said on Wednesday morning.
The three-times British champion jockey, 41, tested positive for what is believed to be cocaine following a routine examination at Longchamp on September 16.
Dettori's suspension runs from November 20 to May 19 and is likely to be reciprocated by racing jurisdictions worldwide, including by the British Horseracing Authority.
Stewart-Moore said in a statement released to Press Association that Dettori "fully accepts" France Galop's decision to ban him for six months.
"France Galop have today announced their finding Frankie Dettori has committed a breach of their rules relating to prohibited substances," said Stewart-Moore.
"I have spoken to Frankie since the announcement was made and he has told me he fully accepts France Galop's decision.
"He also accepts that he has let down the sport he loves and all those associated with it, as well as the wider public. But most of all, and this is his greatest regret, he has let down his wife and children."
France Galop said in a statement that Dettori must be retested by an appointed doctor "no sooner than April 20" next year, and confirmed it had requested the suspension extends to other racing authorities worldwide.
The statement read: "On Tuesday December 4, the Stewards of France Galop conducted a cross-examination of jockey Lanfranco Dettori's file in the presence of his solicitor Mr Christopher Stewart-Moore and his representative M. Herve Naggar.
"In the present conditions and considering this case represents a serious violation to the Rules of Racing, the Stewards of France Galop have issued the jockey with an authorisation to submit to a new medical examination no sooner than April 20, 2013."
1 September 2014Maguire hails 'fantastic' Peddlers
Balding staying grounded with Park
Culloty joins Leger Legends
McCain salutes retiring Peddlers
Regard among September possibles
Cox takes Haydock plunge with Love
Seven Towcester meetings go to ARC
Paddy gunning for Chepstow
Athenian has sales date
No hurry for Cape call
Further checks for Condon
Mirza on Abbaye trail
Due set to miss Sprint date
Condon 'stable' after Cork fall
Queen rules supreme for Smith
River eases to debut success
Carla tops it up to four
Atzeni strikes on Cappella
Ocean team want Haydock rain
Big time beckons for Orange
Palmer aims high with Aktabantay
Hills ponders Dutch gameplan
31 August 2014Atzeni strikes on Cappella
Imminent return Likely
Logic on comeback trail
Dan edges closer to Mile high
Keane error costly for Unrequited
Notarfbad makes all in Mildmay
Orange enjoys Big win
Fabre strikes with Fintry
Akta in late Solario swoop
Icon takes starring role
Pearl fires home in Bullet
Shortall suffers injury setback
Tent team consider chasing
30 August 2014Keane error costly for Unrequited
Shepherd's sent to Tower
Time will tell for Charlton
Stack filly Alive to chance
Sansevero sent to Tower
Palmer plots Solario success
Fabre has high hopes for Fintry
Belardo team keen on Champagne
Rigueur targets Chester consolation
Native in hunt for Bullet gains
Arc still target for Taghrooda
29 August 2014Catterick on track for AW start
Twiston-Davies extends Aintree role
NTF launch Newcastle petition
Bangor launches schooling raceday
Glance sights turn to Australia
Elm to swerve Solario
Irish Leger an option for Seismos
Muir outlines Point plans
Maarek team mull sprint options
Eagle in Champion frame
Raydara plan undecided
Gosden raises Kingman trip question