Generally no. The courts may allow evidence to be admitted if, even though it might have otherwise violated the Charter, it was obtained in good faith. The relevant legislation, and the court ruling that have flown from them, are Charter Section 1 (limiting of rights reasonable in a free and democratic society) and 24(2) (bringing the administration of justice into disrepute).
If police services initiate investigations based on media reports, the evidence they obtain, and how they obtain it, will be important. The initial allegations are public knowledge and the 'hacker' was not acting as an agent of the State.
The Code of Conduct under the Police Services Act is the disciplinary process. If you are looking to sanction a member or impose certain penalties (loss, time, rank, etc.) that is the basis. Below that, a service and its managers have the usual management tools like any other employer.