Jersey did it in 2006.
http://www.njsp.org/news/pr040406.html. A class action suit by all those damaged (losing tickets) would also deter this kind of activity. Unfortunately those suffering damages are too splintered a group and the damages aren't enough for someone to take up the charge. I would also like for trainers that are on suspension to have all of their horses banned for the remainder of the meet at the track where the offense takes place. No passing the string on to an assistant. This means that all horses that are being trained by the trainer at the time of the infraction are banned for the meet. The effect of this could be for owners putting pressure on trainers to win clean. I think a lot of the problems are due to the pressures owners put on trainers to win. Same mentality as Wall Street . Win at all costs regardless of the ethics used. Just some of my lame brained ideas but drastic measures are needed here.