Jamie Osborne: Renowned as one of the most stylish and successful jump jockeys of the 1990s. He has a record second to none in the big races.

Since he joined Oliver Sherwood as a fully-fledged professional the pair have enjoyed numerous big successes with the likes of Aldino, Arctic Call, Coulton, Cruising Altitude, Large Action and Young Pokey.

He has remained a popular choice when Henderson has needed a jockey and won the Queen Mother Champion Chase on Remittance Man for his former boss in 1992.

And he has shone on numerous outside rides down the years, notably winning the Irish Grand National on the Charles Haughey-owned Flashing Steel for John Mulhern.

Dean Gallagher: One of the vast number of Irishmen who have come across to Britain down the years to try their luck as jump jockeys. The 28-yearold's skills have been recognised by taskmasters as stern as Jenny Pitman and David Nicholson and he has several big successes to his name.

He first made a mark when winning the Long Walk Hurdle at Ascot on Royal Athlete for Mrs Pitman in 1989. But the closest he came to the big time was on Dubacilla, on whom he won the Timeform Hall Of Fame Chase at Cheltenham in 1994, then finished second in the Gold Cup and fourth in the Grand National. Gallagher is currently second jockey to Charlie Brooks.

Leighton Aspell: The least known of the three jump jockeys arrested but has the most to lose from any disciplinary action. The youngster is only just starting out on his career and looked to have many good years ahead of him. He is attached to Josh Gifford's yard in Findon, Sussex.