Racing Victoria has vowed to clamp down on the illegal activity which soured the recent spring carnival.

In a bid to eliminate cheats, RV has beefed up its integrity department, planning to boost the number of stable raids and horse testing and intensify scrutiny.

A string of scandals, including allegations of race-fixing and horse doping, the long-running Danny Nikolic saga and an admission of betting by pin-up jockey Damien Oliver cast a pall over racing's marquee events.

Two more full-time members will be added to RV's Compliance Assurance Team, which monitors activity in the sport.

The authority now spends $15 million a year on integrity-related services.

New RV chief executive Bernard Saundry promised that those who broke the rules would be caught and punished.

"The employment process has commenced and will build upon the success of the team during the spring racing carnival," Saundry said on Monday.

The crackdown resulted in 117 stable raids with five resulting in stewards inquiries.

RV has also moved to strengthen rules banning the raceday treatment of horses and will review penalties.

The current prohibition on the raceday stomach tubing of horses will be extended from 24 hours prior to race time to one clear day before raceday.

"We want anyone who does anything that compromises the integrity of our sport brought to account and penalised," Saundry said.

Under a change to Local Rule 71A, RV stewards will have the power to warn off or disqualify a person who is the subject of an exclusion order by the chief commissioner of police under the Racing Act.