The only redress I can see at the moment is suing them, I will if I am ever involved.
I agree, and I would do the same if it happened to me, though the chances of winning even the most blatant case would be small.
I been through the court system as an innocent, wrongly accused defendant. Judges, magistrates etc. do indeed automatically close ranks and shout you down whenever even the slightest suggestion is raised about the police misbehaving in any way. Any complaint about a police officer is pretty much taken with a pinch of salt, whereas anything a police officer says in court is gospel and its authenticity cannot be questioned. If you openly question the testimony of a police officer, you are told it constitues contempt of court, and if convicted, it can get a few weeks or months added to your sentence because of your 'attitude'. In court, the police are God.
Think about it - if a policeman can get away with the motiveless and unprovoked murder of an innocent passer-by in front of a video camera watched by millions, what are the chances of a successful lawsuit against the police over a much less serious matter?
There have been 1,200 deaths in police custody since 1992, yet despite guidelines clearly stating the police have duty of care over people held in custody (due to the enormous amount of control they have over those people), no-one has ever been held liable for any one of these deaths. There was an extremely rare case a few months ago where a Wiltshire policeman actually got convicted and jailed for attacking a woman in his custody. Yet when he appealed, he was allowed out until the appeal date, and he is still employed by the police until (if) his conviction is upheld. For any other prisoner whatsoever, you are not allowed out of prison just because you have lodged an appeal, you are only released if the appeal is successful.