In the Vancouver case there are nine minimum investigations going on that I'm aware of, so I don't want to speculate on that particular instance. What I can tell you is, in the research that we're seeing today, sometimes more than one application is required to give the officers the ability to take that individual into custody.
I think people need to understand one of the fallacies about the taser device. It does not knock you out, it does not make you go unconscious; it only incapacitates during the stimulation. As soon as that stimulation ends, there's nothing keeping that individual from getting up, from re-engaging in the fight, from getting their full faculties back. If they weren't able to restrain them or get them into custody and they chose to continue to fight, there have been times when the second, third, or fourth application is needed in order to get that person restrained.