Private Prosecution
If the police or prosecutors in other Provinces won't act, you can lay a private information before a justice of the peace, and they have to review the evidence and then act on it if the evidence is valid. I have searched online without success to see if the Quebec Civil code also has the same provision. The internet is dark on this issue, but a Quebec based lawyer would be able to shed light on this possibility. If it is possible, then I would recommend that those stung by RTS consider doing so, as this may be the only way to stop this bad actor.