They threw out anyone targeted by a sniffer dog, even when the dog was wrong.
Greens MP David Shoebridge claims every dog costs $2,000 an hour.
Sniff Off allows users to post alerts when they see police dog operations around Sydney. The page's administrators contacted us when officers were caught denying their whereabouts.
The Sniff Off group is managed by activists who say that the use of the dogs results in too many false positives and violates citizens' rights.