Ryan Braun won his appeal on a 2-1 vote. The only vote going against him was made by MLB. MLBPA and the important one, the arbiter, ruled for the appeal. It has been explained that the appeal was based on an improper chain of custody.
Yahoo Sports Writer Jeff Passan tweeted that Braun escaped due to using a loophole. This is lazy reporting and should really be an embarrassment. A loop hole is an ambiguity in the rule of law that can be exploited to avoid the intent of that law. In no way could this be considered a loophole. Braun was in no way responsible for the broken chain of custody. In order for a loophole argument to be made, Braun would have held some responsibility. Passan decided to go further and second a statement that Braun won on a technicality as if there was no reason why a chain of custody exists.
Second, his tweet acts like a chain of custody is not important. I think it is rather safe to say that if a piece of evidence could effectively damage someone's reputation and affect his future earning potential on the field and through sponsorships off the field, the integrity of that biological sample is quite important. A chain of custody is a guarantee of the identity and integrity of the sample. This means that not only was the sample not tampered with, but that the sample is handled in a way that would not affect the protocols for testing the sample.
I typically like the work Passan does, but I find his disregard for the scientific integrity of a sample to be rather distasteful.
There are reasons why these rules exist.
The real story here is why was MLB so hell bent to use bad evidence to go after Ryan Braun in what was surely to be a rather public case.