The Grauniad: Police may be given new powers to stifle dissent

"Theresa May says face coverings could be banned and known troublemakers barred from political rallies in the wake of violence after Saturday's anti-cuts march"

"The government will consider giving the police new powers, including the banning of face coverings, following the weekend's anti-cuts march, the home secretary, Theresa May, has said."

"May said police could be given the power to ban known troublemakers from attending political demonstrations – similar to how known hooligans can be banned from travelling to football matches."