Investigations are under way today into what caused the Newmarket stewards to hand out the wrong punishment after Jimmy Fortune was found to have committed a serious riding offence.
The Jockey Club will be looking to install a "safety net" to avoid a repetition of the embarrassing incident.
Fortune was handed a five-day ban for irresponsible riding of a major nature on Sunday and will now be on the sidelines for the entire Royal Ascot meeting.
But under the Rules, Fortune should have been referred to Portman Square for his latest misdemeanour under the "totting up" procedure as he had already passed the 15-day trigger point.
The stewards erred because they had not realised that Fortune had been banned for four days at Epsom last Friday.
Jockey Club public relations officer John Maxse said this morning: "We want to find out what went wrong.
"It is very worrying and annoying that the system did not work as it should have done and we will do what we can to install some form of 'safety net' to make sure it doesn't happen again."
The latest mistake comes just two months after a similar episode when Darryll Holland committed a riding offence at Hamilton.
This time Fortune found himself in trouble when L'Arita badly hampered Cultured Pearl at the two-furlong pole in the EBF Fillies' Handicap.
His mount went on to finish second but was disqualified and placed last.
Fortune appeared bemused by the affair and said: "I'd rather make no comment."
The ban runs from June 22nd-26th inclusive, meaning he will be on the sidelines for a total of nine racing days.
He was suspended for four days by the Epsom stewards for careless riding when Border Arrow interfered with Fantastic Light in the Coronation Cup.
Investigations into how the error occurred are still going on, although the Jockey Club are happy that details of Fortune's suspension at Epsom were dealt with correctly.
And it has been decided to reintroduce the old method of informing stewards' secretaries of bans as a "safety net" while the current system is looked at.
Maxse said: "With regards to how the error occurred we are satisfied that the details were sent out correctly at Epsom on Friday but we have yet to establish why they did not appear on the stewards' secretaries' system on Sunday.
"The safety net will require every suspension to be faxed to every stewards' secretary and will work in conjunction with the current system as a back-up until the problem is solved."
Maxse also stressed that the blunder was not the fault of the Newmarket stewards.
"Criticism of the Newmarket stewards is unfair," he said.
"They have been let down by the system in that they haven't been given the correct advice - it is a blunder on our part and in the system."
