what is sch training and how would my dog have been trained?

Question
I have recenly bought a GSD 5 year old bitch she is an imported bitch I have been told she is trained as a personal protection dog i have her papers ect and am just curious as to the training she has had, I can see by her pedigree that most of the dogs are Sch trained,i am very interested not that it really matters as i have fallen in love with her just curious thank you

Answer
The Sch is short for Schutzhund or something. I can't quite spell it right.  If I had the right spelling you could do a search on it.  It is very strict training, and calls for instant obedience.  I wish I could tell you more.  Nobody knows everything.  I am good at early puppy care, but weak in some other areas.