There are a lot of things that would need to change to clean up the sport but the number one thing to do is to make the penalties so great that it really isn’t worth it to take the gamble.
What if the said horse who was drugged was out for a year regardless of who owned it? Ditto with the rider and the trainer? Certainly makes things much more risky. A year suspension can end a junior’s career prematurely, can ruin a trainer’s business and can make a horse much less valuable. Money talks…
There are always people who will consider the risk/reward before they do anything.
Another thought is to have the champion and reserve tested for drugs. Do you think that will deter people? I do. What about in bigger money classes testing the top 5 or top 10 in huge classes? That would deter a lot of people from attempting to drug their horses.
You wouldn’t have to test Ch/Res for every division. That would be a random draw with which divisions were to be tested once the testers go to the horse show grounds. I’d also say that there should be some discretion as to additional testing by the steward etc if a horse looks drugged.
Even with very strict penalties, you will still have people a step ahead of the game. Using the latest and greatest before there is a reliable test for it but at least there would be some “bite” to a drug infraction.