Police have appealed for the 15 power station protestors to come down and stop wasting public money in an operation estimated to cost £20,000 per day.
Nottinghamshire's Assistant Chief Constable Paul Broadbent said they have made their point and there are other ways of protesting.
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Dry with clear spells overnight, cool in rural areas.
"She tried to take hold of the knife to stop him. He told her not to shout out and scream and get on her knees and beg."