Ключевые слова: banner, banners, blue, city, crowd, day, demonstration, editorial, enforcement, europe, event, fair, flag, flags, government, group, guard, head shot, icon, law, manifestation, march, national, news, officer, old town, parade, patrol, people, poland, police, police officers, police sign, policeman, polish, political, portrait, protect, protest, protesting, safety, sign, street, strike, symbolic, uniform, warsaw, whistle, whistle blowing, work,