UK: Close shots of Heckler and Koch launcher and an AEP (attenuating energy projectile) - or plastic bullet - on a table

Close shot of blue and white cordon tape with the words 'Police' on it, fluttering in wind against blurred background

The Metropolitan Police Headquarters; New Scotland Yard building in London, England. Police van in the foreground.

London, England. Low angle view of a rotating sign reading 'New Scotland Yard' and 'Working for a Safer London'. The Metropolitan Police headquarters; New Scotland Yard building in the background.

A line of police standing before a crowd of young Chinese onlookers in Tiananmen Square, Beijing, People's Republic of China.

London, England. Close up view of rotating sign reading 'New Scotland Yard' and 'Working for a Safer London'. Metropolitan The Police headquarters; New Scotland Yard building in the background.

Policeman's hat on counter in police station with back view of male British police officer standing at desk in background

New York City, USA. Close up of a neon sign above police bureau reading; 'New York Police Department'.

Manhattan, New York City, USA. Angled view of a New York Police Department (NYPD) patrol car. Pan up to wide shot of Times Square. There is a US Armed Forces recruiting station in the middle of square.

London, England. Low angle view of rotating sign reading 'New Scotland Yard' and 'Working for a Safer London'. The Metropolitan Police headquarters; New Scotland Yard building in the background.

Low angle shot of the US Department of Justice in Washington DC, USA. Pan down to sign reading; 'United States Department of Justice Building'.

Manhattan, New York City, USA. Traffic Police standing on corner in Time Square. Steam escapes from a drain in the foreground.

Sequence of a police officer searching a man. The anonymous police officer pats down the anonymous man's trousers and shoes, and writes in their notepad. The police is wearing a bright yellow Metropolitan Police vest.

Liverpool, England, United Kingdom: Medium shot of Liverpool Crown Court.

New York City, USA. A New York Police Department (NYPD) patrol car parked outside a police bureau. The police bureau bears a neon sign reading; 'New York Police Department' overhead. Traffic passes in the foreground.

London, England. Low angle view of rotating sign reading 'New Scotland Yard' and 'Working for a Safer London'. The Metropolitan Police headquarters; New Scotland Yard building in the background.

Back view of two British police officers walking along suburban street as traffic passes along road, policemen are wearing yellow reflective jackets and police hats

New York, USA: New York Police Department building with advertising billboards above 'New York Police Dept' sign.

Metropolitan Police Headquarters; New Scotland Yard building London, England.