A Facebook video showed a police officer in Vacaville, California, punching his canine partner in the face. The person who filmed the video said the officer punched the dog repeatedly before he started filming, SFGate reported. The Vacaville Police Department said that the dog was removed from the officer's care and that the dog became "aggressive" before the officer hit it. It did not name the officer. The canine partner of a police officer in Vacaville, California, was removed from the officer's care after he was filmed punching the dog during a training exercise, the Vacaville Police Department said on Facebook on Tuesday.