William L Cassidy's publication (pdf) of The Fairbairn Manual of Knife Fighting

[singletond]

In this pdf (link below) William Cassidy edits the Fairbairn version and adds his own opinions. In particular, at the end of the pdf Cassidy adds:
Note: I [meaning W.L. Cassidy] have studied this issue for more than twenty-five years and have experienced the attentions of the finest instructors in the world. Please be assured that no martial arts school or technique can offer a predictable method of defense against a knife, and most of the techniques and methods one sees are suicidal against a knife fighter.

Can anyone point me to a source documenting WL Cassidy's career and experience that shows he does have the background to make that statement?

Dave

pdf is available at

Fairbairn Manual of Knife Fighting William Cassidy : Free Download, Borrow, and Streaming : Internet Archive

Fairbairn Manual of Knife Fighting William Cassidy

archive.org

 

[Fumetsu]

I can't find anything regarding his education or early life history. All I find are his books, and a politician.

 

[shane45-1911]

no martial arts school or technique can offer a predictable method of defense against a knife,

I completely agree with this - notably the "predictable" part. And I do have the background to make - or agree with - his statement. Whether he has "credentials" or not to back up his statement, it doesn't take a rocket scientist to know that knife fighting is ugly, dirty business.

I have been a LEO force-on-force instructor for 20 years, and there is absolutely nothing to contradict his statement. Knife fighting is dynamic and fluid and there are no set rules or guaranteed predictable outcomes. You fight with knives, you WILL get cut/stabbed. Period.