I agree with Tripolar, it’s an entirely futile effort. A huge proportion, very likely greater than 80% of elite athletes, have used PEDs at the highest level of sport, whether they be Olympic athletes or professional athletes in soccer, football, baseball, and what have you.
For AAS, if you’re doing them intelligently in your training off-season, there is basically zero chance of getting caught, and in most sports the testing is anything but random, with defined testing times or advance information the norm, at which point it turns into an IQ test instead of a PED test.
For cardiovascular capacity enhancers like EPO, rhEPO, self blood infusions, meldonium, and the like, the testing agencies are getting more accurate with their methodologies, and instead of just saying anything above a hematocrit of 50 is banned (thus giving you the exact target to shoot for with your PEDs), can now test for metabolites and genetic markers, and we have indeed seen a corresponding drop in average tour de france times as a result, but even this is misguided and only takes out one class of PEDs, with other PEDs still being basically undetectable with intelligent use and/or foreknowledge of protocols.
In addition to being largely pointless, the PEDs testing arms race is doubly harmful, because it drives athletes to lesser known, more experimental PEDs with higher risk profiles and greater unknowns.
Prohibition doesn’t work, and anywhere there is the chance to get that extra 5% or even 1% performance edge, people who have dedicated their entire lives and careers to top performance will risk their lives to get that edge. The riskier we make it, the more risk they’ll take.
We should collectively face reality and open up the standards, or at the least, create an “unlimited potential” class or league without testing.