The plea of self defence should be a basic foundation of any self defence training and yet for many schools it is a subject never covered or covered with the generic only use this to protect yourself. The topic is not that simple. You may be lucky and the person you defended yourself is a known criminal and you the good citizen or it may just get very complicated. Knowing how try and stay on the right side of this affirmative plea is just good self defence. here is a video series I did covering a variety of topics. this series is also available on my YouTube channel if you want to recommend it to others.