The various police services do their work, with legal authorization. There is no problem with that: We state what the ongoing investigation is and open the containers together. On the other hand, if the police officers working at the port—whether they are from the Sûreté du Québec, Montreal city police, or other police services—were to have additional powers to open containers, that would certainly facilitate matters.
On April 18th, 2024. See this statement in context.