Semi graphic bite photos.

[KingWheatley]

You can't really train a non aggressive dog to be aggressive. There is a HUGE genetic component.

If a dog has the drives to be aggressive you can train it to use its aggression at your discretion.

But there is a reason that labradors aren't used as patrol dogs and why poodles were never used in blood sports.

Actually... Labs are used as patrol dogs.

My ex's department has two Labs, one German shepherd, and one other dog who I don't remember the breed of.

Also Lexington Metro Police Department just got a new Chocolate Lab as a K-9.

Herp Derp