I look forward to reading Justice Simon France's reasons in the Red Devils case for the considering it a good idea to express his view of Police misconduct by leaving alleged crime unpunished.
There may be compelling reasons why it should have been applied in this case. The charges may have involved no obvious victims to be outraged by the loss of justice for them.
I hope that the reasoning reflects more than the common arrogance of our law, lawyers and judges toward victims and potential victims of crime. They see the criminal law as their game. In that game the lawyers (including the judges), criminals and the Police win or lose in each round according to whoever best exploits arcane rules. They regard as incidental any right to justice of third parties (the community and victims).
The costs to others when staying proceedings against alleged offenders who may be guilty should be calculated. They should be weighed against the expected benefit of the "message" sent to the Police by a discharge or stay, in comparison with more targetted disciplines. Conceivably a cost could be a Police resentment that becomes cynicism and greater disrespect for the law.