I like you guys' line of thinking. The temptation to win at all costs is obviously too great with the current state of things. I think there should be strict liability with a 3 strikes system (kind of like the criminal penal code in California!!) that increases the punishment for the first two offenses and then requires a substantial ban (maybe not lifetime, because I believe people can learn from their mistakes) from the game to both hit them in the pocket and protect all the horsemen and horseplayers who expect integrity in the game.

Here's an example:

A horse you train tests positive: $10K fine

Any other horse you train tests positive for the second time: $50K

Any other horse you train tests positive for the third time: 5 yr ban from the game + another $50K fine.