IMO
It's pretty obvious - there were records of injects drugs. On paper. On computers.
And due to drug cheating...
They were destroyed
You can't tell me: you injected a football club ten thousand times, or whatever, and no one wrote anything down in regards to what gear was going into which vein. I don't see how Hird, the CEOs, dank, reid, bomber etc. don't go to prison for a long time for breaking medical / OHS laws. In this day and age the amount of rules against a undocumented mass drug injecting club program that including various drugs would be numerous