This looks like a truly awful idea. Once police have decided that you need to be immobilized, they will do whatever they feel is necessary to achieve that goal.

This looks like a truly awful idea. Once police have decided that you need to be immobilized, they will do whatever they feel is necessary to achieve that goal. After handcuffs, their next option is going to be tear gas ... if you're lucky. I'm not saying that's how it should be, but in the US at least that's how it is.