[Edison]

I don’t think it’s an Elk. The animal isn’t tall enough for the spread and the rack appears very wide. Looks more like a Red Stag from New Zealand.

[Sacajaweau]

Looks like a photo shopped pic that has nothing to do with the critter in the video.

[eastforker]

Could be but I would wager a red stag is closely related. The bellow he let out sounds like that of an elk.

http://www.allaboutexotics.com/exotic-species/red-stag/

Adult male stags are distinguished by the “crown” or “cup” of points at the tops of both beams, whereas bull elk generally grow a “row” of single points off of the main beam.

[Smokin' Joe]

In the UK dialing 101 will get you the police, as the person speaking in the video said.