Leading jockey Jamie Kah has been cleared of conduct prejudicial to the image of racing.

A Racing Victoria Tribunal on Friday found that Kah had no case to answer following a six-month legal battle after she was filmed with a white substance.

Tribunal judge John Bowman said Kah could not be charged for bringing the sport into disrepute because she did not know a photograph and video had been sent to another person.

While Judge Bowman said Kah’s behaviour had been “ immature, irresponsible, and reckless” he was confident the jockey did not breach racing’s prejudicial conduct rule.

Stablehand Rubi McIntyre was found guilty of a charge after previously admitting to covertly taking the video of Kah while the jockey was recovering from a race fall.

Her penalty hearing has been set for January 18.

Kah suffered head injuries in a fall in the VRC Sires’ Produce Stakes at Flemington in March.

She returned to riding in August before making an impact towards the end of the Victorian spring carnival.