Ключевые слова: arrest, attack, block, british, city, control, crime, crowd, demonstration, editorial, emergency, enforcement, england, english, equipment, event, fight, force, gear, government, guard, helmet, law, line, london, man, march, news, officer, police, policemen, political, power, protection, protest, public, rally, riot, road, safety, security, shield, social, society, street, uk, uniform, united, unrest, violence,