The main reason police agencies fly drones is for real time surveillance. To do this properly requires a pilot who is usually focused upon a screen or First Person View (FPV) hood, and a spotter who is scanning the airspace for conflicting traffic. Clearly a spotter was either not used in this case, or the spotter was not doing his/her job. Considering the other deficiencies in this particular police operation, it all adds up to reckless operation and/or gross incompetence. I don’t know how drone operations are regulated in Canada, but to operate one commercially in the U.S. requires a special license.