Leading jumps trainer Nicky Henderson will have to wait until next week at the earliest before he knows whether he will face losing his licence or escape with a fine.

Henderson was found in breach of the rules of racing in relation to the running of the Queen's Moonlit Path at Huntingdon in February at a British Horseracing Authority hearing yesterday.

Moonlit Path finished sixth in a mares' novices' hurdle on 19 February, after which she tested positive for tranexamic acid, an anti-bleeding drug.

The Lambourn trainer had admitted to three of the four charges with which he faced but denied any wrongdoing in relation to Rule 200, which governs administrating a positive substance.

However, the BHA panel found him in breach of the rule, which carries a fine of £2,500 or a one-year disqualification.

The range of penalties could run up to £12,000, while disqualification ranges from one month to five years.

The panel will meet again at a date to be decided to hear mitigation from Henderson's legal team before issuing a punishment.

In 2006, trainer David Flood was warned off for two years after being found guilty of four charges relating to the unauthorised administration of a painkiller to a horse before a Newmarket race.

Meanwhile, James Eustace has warned that War Artist will need the run as he makes his seasonal reappearance at Newcastle on Saturday. The six-year-old has not been seen out since finishing three-quarters of a length behind Marchand D'Or in the Group 1 July Cup at Newmarket last season.

The former South African sprint star is poised to run in the Chipchase Stakes as a stepping stone to a crack at King's Stand hero Scenic Blast, Golden Jubilee winner Art Connoisseur and Queen Anne Stakes victor Paco Boy in the July Cup.

But Newmarket trainer Eustace sounded a note of caution. He said: "We were trying to get him ready for Royal Ascot but it was always going to be a rush, so we decided against it.

"He's had a very long time off because of minor injuries. I am quite happy with War Artist, though he will come on a ton."