I saw the video of this impressive dog.
This is the kennel website http://www.vanleeuwen-dutchshepherds.nl/
I'm wondering how such a dog would fit into a family setting?
Some quotes from Van Leeuwen:
Robbie had all the characteristics that we are looking for in a good working policedog. He was very courageous, independent and had a very tough character. A hard dog, and not one that was suitable for a first time handler, because of his lightly flammable character.
Van Leeuwen`s Nika is linebred on Van Leeuwen´s Robbie. Robbie is the grandfather of Nika at both parents. Therefore temperament, dominant behavior and toughness are very extreme on this female. She has passed on this caracteristics on her offspring, for example Van Leeuwen's Spike, Van Leeuwen´s Benta and Van Leeuwen´s Ebro.
Our goal in breeding is to breed more Dutch Shepherds of this kind to be trained in Holland and in the rest of the world as a working police dog, or in other venues of sport and working goals.
No doubt these are the right characteristics for a PSD. I'm also sure I could handle the dog. My main concern would be dominance issues with lower ranking family members.