Leaked police files contain guarantees disciplinary records will be kept secret
theguardian.com
theguardian.com
This is the problem right here. These contracts shouldn't need to be leaked, because they shouldn't be secret in the first place.
As for "punishment", are you serious? What punishment? By whom? Under which terms?
Personally I'd advocate for my work disciplinary interactions to be private between me and my employer, as I suspect would most people. The police have a public interest counter argument to that otherwise rational expectation. So what's the middle ground? Can there be generalised stats released whilst maintaining privacy? Perhaps privacy simply cannot be maintained in this instance (for example my professional body would publish the results of disciplinary hearings to the public record I believe).
Accepting that you don't like the result I find it hard to believe you can't see that there's a conversation to be had and that both negotiating parties had a case to make.