senior police officer blowing whistle gesture hand tries to control crowd as people came to watch the coronation ceremony of the new king

crowded rally people marching city life outdoors shouting man shouting controlling police celebration corona virus spread protest unarmed traffic crowded population hazardous preventive precaution safety measure unhealthy breathe outside social change street public caution safety health wearing overcrowded passengers overpopulation city protective safety pandemic coronavirus virus disease together screaming organized hands group audience male public control crowd people