Those officers were in the wrong in saying that recording the police is an offence; recording anyone is just annoying

But yes as a member of a law enforcement agency, it isnt good to have this kind of thing and the higher level corruption etc.
To be fair, the guy in the video clearly has something against the Police, perhaps he feels that this behaviour is everywhere most of the time (it isn't). That doesnt really matter anyway.
I dont wish to defend the Police here, I'm not a police officer, I dont report to a Chief Superintendant etc etc, I and my agancy operate beyond the normal Police - and therefore I see more severe apparent abuse of position by the nature of the crime I/we deal with. I suppose I am hardened to the low-level stuff like this.
I dont wish to play stuff like this down, it's important, but what I'm saying is this kind of video sullys the Police as a whole entity - read the comments to that and other videos - and Police keep this country above water. I want the public to look at the POlice and all law agencies with respect, pride and if necessary, fear.
I want people that use the internet for illegal ends to be afraid of me watching their usage, I want muggers to be afriad of getting smacked by a baton, I want terrorist to be afraid to come into this country, I want everyday people to know that they can't break the law. Sullying the name of the Police just makes this harder and lessens the respect for them.
There is more 'Police abuse' stuff in the many forms of media than there is 'Police hero' stuff. This should be the other way around, cos thats how it is the real life, outside of YouTube and one-sided videos.