Shinn, who partnered Viewed in 2008 to win Bart Cummings‘ 12th Cup, is being investigated along with NSW hoop Peter Robl. No charges have been laid.
Formerly Gai Waterhouse‘s stable jockey, Shinn rode Cummings star Precedence to victory in the Cathay Pacific Airways Cup at Moonee Valley on Saturday.
Precedence is considered a contender to win Tuesday’s Melbourne Cup but is not certain of gaining a start and is 26th in order of entry.
NSW chief steward Ray Murrihy said a date had been set for a hearing. Stewards have allocated lawyers for Shinn and Robl with evidence to be heard at a hearing on November 8.
”I can confirm that the matter involves the bets placed from a single TAB account. The matter could be dealt with at our first meeting or it may require further discussions,” Murrihy reportedly said.