The officer ordered the man to put his arms behind his back and the man failed to comply. Failure to comply with a "lawful order" allows the officer to use the force necessary to compel compliance.
Perhaps Utah law holds that such an order implicitly includes a "warning".
The cop set up a speed trap. He failed to treat the driver with respect and failed to handle the situation properly when the driver got upset. This is not quite a police state yet. Police should not be able to stop their boots on our face whenever they want.
This cop is incompetent and looking for an excuse to taze someone. His ‘order’ was not lawful. These kinda guys live for the take down of us little peons.
And what justification did the officer have for that order. The officer was totally out of line. Oh, I'm sure he will say he had suspicion, of what? Stupid improper use of authority. I'm afraid that we are creating a officer mentality that we get from the TV. Real life is different than the slap around cop mentality. Instead of internal investigators of the police department, we need a totally civilian over seeing of the police.