Funnily enough, I posted that link last night when I came across the report while looking into what happened with Puerta, Wardy's opponent today, but I can't find it any more. The board was behaving a bit oddly in the early hours though.

If you look at the detailed judgement (pdf link at the bottom of that page), they seem to accept that the presence of canrenone in her system was due to therapeutic use of a prescribed drug containing it (spironolactone) to treat a medical condition, medication which she declared on her doping control form. However, they don't believe that informing the doctor who prescribed it that she was an athlete and asking whether it was still ok to use it was taking sufficient care.

While I understand that strict liability is needed to avoid the real cheats always finding a way to get around the system, I get the awful feeling (having read a few of these judgements), that it's almost always those who make a relatively innocent mistake who get caught and the people deliberately taking performance-enhancing drugs are probably far too careful to get caught out and don't tend to get spotted unless they are stupid.