I'm assuming that none of the respondents so far, and you Gromit, has ever been a Police Officer or has knowledge of what Police training involves.
Let me tell you quite categorically that the brief piece of footage did not show the man being beaten up but demonstrated the methods of training taught to Police Forces in England and Wales under Home Office guidance.
I hope people on here have also read the link which tells of the reasons why the Police were involved in the first place: i.e. that this character had just been slung out of a nightclub having had an altercation with a doorman, he had then assaulted a Police Officer who needed hospital treatment before being apprehended by other Officers.
Unfortunately, the footage didn't capture the initial exchanges between this man and Police Officers which would undoubtedly have shown why he was not dealt with in the manner of a little old lady shoplifter.
Also, there is no mention of any injuries sustained by this man and I'm positive that we would have heard of those had there been any.
Bear in mind, too, that had this man been some innocent victim of perceived Police Brutality we would undoubtedly have heard all about it by now and he would have without shadow of doubt been paraded on telly by the likes of Max Clifford. Why has that not happened? Perhaps because the man himself knows the complete truth of everything which happened that night, not just the final instalment.
It seems like the Police can't win no matter what: people whinge because they allegedly do nothing about yobs, then whinge when they do! We can't have it both ways, folks!