The arrest, early on Monday, of 114 demonstrators in a school outside Nottingham on suspicion of conspiracy to cause criminal damage and aggravated trespass, long before they managed to get anywhere near the Ratcliffe-on-Soar coal-fired power station, smacked of intimidation; the bail restrictions then placed on them draconian and deeply unsettling in a free society

And news that Ian Tomlinson, the news-paper vendor shoved to the ground during G20, died of internal bleeding rather than a heart attack, is shocking

there is a wealth of video evidence online showing excessive force being used against demonstrators

Yet it's increasingly clear we cannot trust the police account of events