I know of no privately owned narc dogs. You would run into issues with all kind of stuff. What to do with anything you find. Material to train with, probable cause, etc.
There are privately owned explosive detection dogs, mostly with security companies. The Mall of America has a few.
He is your friend, your partner, your defender, your dog. You are his life, his love, his leader. He will be yours faithful and true~ to the last beat of his heart. You owe it to him to be worthy of such devotion. ~unknown