Police accused of unprovoked racist assault on HS2 protester

Activist's claim of racist assault on bypass adds to litany of alleged violations of human rights sent to UN rapporteurs

A campaigner against the HS2 rail line whose head and back were knelt on by police after he says he was thrown to the ground during a peaceful protest believes he was singled out because he is black. He has lodged a complaint of assault amid rising calls for UK government action on the policing of environmental protests.

Video footage shows William Harewood, the only person of colour in a small group of activists at a bypass in Wendover, Buckinghamshire, offering no resistance as he is held face down by Thames Valley police officers, two of whom kneel on his head and upper back while two others pin his legs down with their knees.