Found this article on Camp for Climate Action facebook page, published on the Guardian website, written by George Monbiot.
This is concerns you, if you ever worried about the environment.
This is what the head of a police unit set up to monitor domestic extremism said in 2009: “I’ve never said – and we don’t see – that any environmentalist is going to or has committed any violent acts.” That chimes with my experience. Two years ago I searched all the literature I could lay hands on, and couldn’t find a single proven instance of a planned attempt in the UK to harm people in the cause of defending the environment. (That’s in sharp contrast to animal rights campaigning, where there has been plenty of violence.) No one has yet produced a factual challenge to that conclusion. Yet every year a shadowy body spends most of its £5m budget on countering a non-existent threat that officers call eco-terrorism.
The National Public Order Intelligence Unit (NPOIU) employed the undercover officer Mark Kennedy, who was embedded and bedded for seven years among peaceful green activists. Kennedy claims that it has supervised 15 other undercover agents on the same mission. But what is the mission? Sorry, can’t tell you. NPOIU is run by the Association of Chief Police Officers. As Simon Jenkins pointed out last week , Acpo is not a police force but a private limited company, beyond democratic scrutiny, not subject to freedom of information laws. While it receives much of its funding from the government, it is not accountable to the public. It looks to me like a state-sanctioned private militia, fighting public protest on behalf of corporations.