Yes, drug testing with the CDC (Centers for Disease Control and Prevention) has restriction for drug research that are in place that can slow the progress of research to a crawl like for instance that a new threatening viral out break was to happen the CDC would leap into action sending billions of dollars into research on a vaccination but they cannot test on humans to see if the drug is safe i personally be leave that they should be able to test on humans WITH consent from them and of course singing a waver the point is that that "safe guard" is actually a wall in the face of researchers that they cant get around only when the viral out break has wiped out enough people will it be removed.
No, it shouldn't be removed. If it was removed, then those that want to be a guard can easily take drugs to enhance performance and ability skills. Guards shouldn't be able to beat the crap out of bad guys because of that. The only way guards would be able to beat the crap out of bad guys would be because of their skill they already have.