This is about going further, though, sir.
Say you had reason to believe somebody was involved with gang activity, and my company held some information that would help you. You could also say to me, “Not only give me what you've got, but call that gang member up and try to suck him into revealing more information”—stuff you wouldn't be able to do without a warrant, or a search of his house.
Or let's say you're an insurance company, and the police might have reason to believe there's stolen property inside that house, but you can't get a warrant. The insurance agent, acting on your behalf, could go in and gather that information and then share it with you. The private sector is being deputized to do police work: that's what we read PIPEDA to be saying here.