A democratically elected executive as no legal right to ignore the law. Some of those officers committed assault. Don't get me wrong, the miners were no angels but that doesn't excuse police officers breaking the law.
The miners were utterly mislead by Scargill & co. Coal was already dying and Scargill used it for his own political agenda. That said, the police acted is a disgusting, violent, illegal way and should be held to account - Rudd and May appear to be too lillylivered to do so though.