Last night, my teacher was talking about brachial plexus strikes and he was sharing some stuff from a LEO perspective. He said that these strikes were taught to all Officers because they are 100% effective. Some of the studies he cited showed that any resisting perpetrator would be susceptible to these strikes and that no one in 30 years has had to strike the brachial plexus more then three times to knock a person down and out. What do you think about this? Does your art train these strikes? How?