I have seen Dillman and others perform no touch knockouts with there students and it worked but when it was used on some one elss it had no efect on them at all some scientist even volunteered and it faild to work on him all they could say is that if your tong or some thing was in a certain position it wont work I think its complet bs.

http://video.search.yahoo.com/video/view?&h=240&w=352&type=mpeg&rurl=www.geocities.com/uk_dbbai/knockouts1.html&vurl=www.geocities.com/uk_dbbai2/KOs.mpg&back=p=no+touch+knockouts&ei=UTF-8&fl=0&fr=FP-tab-web-t&turl=scd.mm-so.yimg.com/image/1845813472&name=KOs.mpg&no=1&tt=1&p=no+touch+knockouts&size=846.2kB&dur=3

http://www.bullshido.net/forums/archive/index.php/t-10835.html