Best and worst police dogs

The video above shows French police dogs in training sessions (the screams of pain from the "victims" are staged). It's very impressive to watch the dogs fly over cars! (Found at Buzzfeed)

After that, I think it's best to offer some related comic relief. This video of a fleeing malefactor was taken from a pursuit helicopter. The dog... well, see for yourself... (Found everywhere on the internet; it went viral several years ago)