England, Merseyside, Liverpool, Graffiti with Cops are Bastids written on brick wall as children walk by, 1972.

Law & Order, Police, Thames Valley officers walking the beat.

Law & Order, Police, Thames Valley officers walking the beat.

Detail of Police officer wearing body armour and holding Hand Cuffs.

USA, New York City, Manhattan, New York Police Department car, NYPD.

Detail of Police officer wearing body armour and holding Hand Cuffs.

Detail of Police officer wearing body armour and holding Hand Cuffs.

USA, New York State, New York City, Anti Vietnam war demonstrators.

USA, New York State, New York City, Anti Vietnam war demonstrators seated and surrounded by Police.

USA, New Mexico, Albuquerque, Mounted Police at the InternationalHot Air Balloon Fiesta.