Champion trainer Darren Weir will front the Racing Appeals and Disciplinary Board which is expected to confirm a disqualification relating to outlawed electronic devices known as jiggers found in his stable.
The RAD Board will open an inquiry on Wednesday morning with Racing Victoria stewards saying they will seek a four-year disqualification.
Weir has indicated he will not contest the charges relating to three jiggers found in his stable at Ballarat.
He has also been charged with conduct prejudicial to the image of racing.
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The RAD Board has the power to issue penalties higher or lower than the stewards' recommendation.
Weir's assistant, licensed trainer Jarrod McLean, will fight a charge relating to a jigger found on his premises with no date set for his hearing.
A five-time Melbourne premiership winner, Weir trained Prince Of Penzance to win the 2015 Melbourne Cup in a famous victory for jockey Michelle Payne.
Jiggers are used in training to give horses a shock and the action is simulated on race day.
The transfer of horses from the Weir stable has already begun with more than a hundred moved to other trainers before Monday's 11-hour show cause hearing, leaving around 500 on his books that need new homes.
Weir's stables at Ballarat and Warrnambool were raided last week in a joint operation by RV stewards and officers from Victoria Police's sport integrity unit.
