If that was the US, he would have been fucked up senseless, then tasered repeatedly.
He should have been, unfortunately in the UK, these criminals will press charges claiming the police used excessive force. And the bullshit justice system will probably uphold the charges and let the real criminal go.
Same as if a gang of kids throws bricks at your house, smashes your car up, whatever, if you go out and end up smacking one of them, you'll get locked up, while they go free. Pisses me off how many people get away with stuff over here.
I love watching American cops when they don't take any shit and just taser people.