Anti Doping is tough. Does it work? Yes, it works. I don't know how well it works, but they do catch people and that's a good thing given what the IPF's rules are. That said, there are some who don't get caught. In 2006, we went to Bulgaria for Jr Worlds. A friend of mine went to dinner with one of the Eastern European teams. They asked him, "So what drugs to you use?" He was a little put off since it was a drug tested meet and said, "What are you talking about? I don't use anything." They didn't believe him and were pretty open about their own use, "This is what we use, this is how we beat the test, this is how we make sure WADA doesn't show up at our Nationals, etc". That is really offensive to somebody who is working their ass off to come compete in an event where everyone agrees to follow certain rules. So, no, it's not a perfect system. But I do believe that at the IPF level, they try. Some countries seem to take it more seriously than others...