He just had root access at the gov't COVID testing system level.
Here's a separate thought experiment too:
We've all heard stories of people faking COVID tests. E.g. people don't want to pay the price to get tested, or they can't be bothered to go get tested, so they grab an old covid test, change the date and then go to the airport. The airline representative can only do a visual inspection of the document, and most of the time they have bigger issues than making sure each covid test is valid. For example, they're not going to call the doctor's office for each test.
This seems to be what Djokovic did, fake the COVID test. Hundreds / thousands of people break the rules with fake covid tests and they don't get caught, but he fakes it once and he gets caught.
With this framing, you could in fact say that he is under even more scrutiny than the rest of us. So, not only does he have to follow the rules, he has to follow them even more than we do.
doesn't make that much sense, does it?
It's up to ever single individual to interpret what is just and what is unjust, with all its consequences.
I, personally, find that the restriction is stupid, doesn't bring any benefit, and would have no problem to completely disregard it on a moral basis, if I had no fear of consequences.
In effect, if his team + Serbian gov't manipulated the tests, I'm not sure what the recourse is, except for the Australian gov't to sue the Serbian gov't?
Australia's recourse would be to deny him entry.
P.S. But either way, of course it's he who is ultimately responsible, in the same way I'm responsible for the contents of my tax return, regardless of who prepares or files it on my behalf.
The date an image is generated (which is what they are looking at) on some website is not the date's the test were taken.