you realize this policy is NOT 100% fool proof right? I had a client 20 years ago who came up dirty in a urine test...turned out the tester threw a couple of grams of cocaine in the test cannister after my client left ,resealed it and did the testing himself...twice. I had to provide documentation from the Syva corporation that made the testing machine showing that the metabolyte level in the urine was lethal, in fact enough to kill a horse.
My point is there is ALWAYS a human factor present with these "procedures" and given the enmity between the league and the Patriots the past decade, I put NOTHING past anyone involved, including any "independent" testers.