No progress in jockeys’ mobile phones row
Officials at Portman Square confirmed that the rider had been stood down for the rest of the day for "safety reasons" after two checks revealed the jockey tested positive above the permitted threshold.
However, before any disciplinary action is taken against the rider, a urine sample subsequently given by Dalgleish will have to be analysed, Jockey Club director of public relations John Maxse said.
If the sample did not show an alcohol level above the threshold then disciplinary action would not be taken, Maxse added.
Neither Dalgleish, one of the rising stars of the weighing room, or his boss Mark Johnston were prepared to comment.
The new regulations concerning the use of breathalysers came into force for the first time at Brighton on July 15.
Dalgleish has ridden 57 winners this season, including one at Royal Ascot courtesy of Johnston's Fantastic Love.
The young Scot earned many plaudits for his ride on that occasion, not least from Johnston, who described him as a possible championship contender one day.
The Jockey Club have carried out over 120 breathalyser tests since their introduction, although Maxse added that the level of testing had not yet reached its optimum level.
Meanwhile, representatives of the riders believe it is up to the Jockey Club to restart negotiations, which are at a stalemate, to resolve the bitter dispute over the mobile phone restrictions.
Michael Caulfield, chief executive of the Jockeys Association, has indicated his desire to have more talks with racing's regulators "without delay".
"We are keen to talk but I'm not so sure we are going to get anything back," he said.
"I think the industry is expecting them to do something."
However, there is no meeting currently planned between the parties concerned.
The row between the jockeys and the sport's regulators reached boiling point when the riders boycotted Sunday's fixture at Sandown, which caused its cancellation.
When asked if they were going to boycott any future meetings Kevin Darley, joint-president of the Jockeys Association, said: "For the time being it was a one-off protest.
"There is a compromise. I just wish they would sit down with us and get it done and dusted so that both parties will be happy and it will be finished with."
Darley had earlier inadvertently breached the controversial rules but no action was taken by the stewards.
"I was asked by the clerk of the course Anthea Morshead to take part in a BBC Radio Scotland programme," Darley said.
"But I got here a bit later than I intended and when I was speaking on the radio we ran into the half hour deadline before racing at which we have to switch our mobiles off the weighing-room security officer spoke to me about it and I stopped as soon as I had finished answering a question he was just doing his job and there was no problem."
Stipendary steward Phil Tuck explained: "The security officer reported the matter as he is required to do, but no action was taken.
"Kevin was just speaking on the radio and there was no malice involved or intended."
