Trainer Barry Campbell has been disqualified for three years for illegally treating Adelaide Cup second favourite Eastender on raceday.
TRSA stewards at an inquiry on Friday found Campbell guilty of treating Eastender with potassium on raceday and conduct intended to corrupt the outcome of a race.
Campbell was disqualified for three years while his stable foreperson, Tania Coward, was disqualified for 18 months for her role in the matter.
Eastender became the first horse in 42 years to complete the Tasmanian Cups treble (Devonport, Hobart and Launceston) in the same season last summer.
Eastender was among the leading contenders for the $400,000 G2 Adelaide Cup (3200m) at Morphettville on March 11 but scratched by stewards at 10:55am (local time) due to their belief the horse was illegally treated on raceday.