The anthropometric record card of Sarah Giles, a servant who was convicted of stealing in 1897, on display making up part of a mosaic of cards on a table top during a press preview for the Crime Museum Uncovered exhibition at the Museum of London in the City of London, Wednesday, October 7, 2015. Drawn from Scotland Yard's private collection, the show charts more than a century of violence and suffering, from the murders of Jack the Ripper to IRA and al-Qaida bombings. But it also celebrates the brains, bravery and scientific advances that helped catch perpetrators and solve crimes. (Photo by Alastair Grant/AP Photo)





A Metropolitan police 'Murder Bag' from the late 1940's to 50's, containing all the police officers forensic needs, is displayed as part of the Crime Museum Uncovered exhibition at the Museum of London in the City of London, Wednesday, October 7, 2015. (Photo by Alastair Grant/AP Photo)





Replica and real guns used in crimes are displayed for the Crime Museum Uncovered exhibition at the Museum of London in the City of London, Wednesday, October 7, 2015. (Photo by Alastair Grant/AP Photo)





Members of the media look at exhibits on display during a press preview for the Crime Museum Uncovered exhibition at the Museum of London in the City of London, Wednesday, October 7, 2015. (Photo by Alastair Grant/AP Photo)





Prisoners' anthropometric record cards dating from the late 19th century on display making up a mosaic on a table top during a press preview for the Crime Museum Uncovered exhibition at the Museum of London in the City of London, Wednesday, October 7, 2015. (Photo by Alastair Grant/AP Photo)





Replica and real guns used in crimes are displayed for the Crime Museum Uncovered exhibition at the Museum of London in the City of London, Wednesday, October 7, 2015. (Photo by Alastair Grant/AP Photo)





Telegrams and a picture of Harvey Crippen and his accomplice Ethel Neve, which pertain to his capture for the murder of Crippen's wife Cora in 1910, form part of the Crime Museum Uncovered exhibition at the Museum of London in the City of London, Wednesday, October 7, 2015. Crippen was infamous for being the first criminal to be captured with the aid of wireless telegraphy. (Photo by Alastair Grant/AP Photo)





Execution box no. 9 from Wandsworth Prison, which was sent around the Britain to be used as required, is displayed as part of the Crime Museum Uncovered exhibition at the Museum of London in the City of London, Wednesday, October 7, 2015. A sticker on the box showed it was used in Jersey, on Oct. 9 1959 for the last execution in the Channels Islands, that of Francis Huchet. (Photo by Alastair Grant/AP Photo)





Members of the media look at exhibits on display during a press preview for the Crime Museum Uncovered exhibition at the Museum of London in the City of London, Wednesday, October 7, 2015. (Photo by Alastair Grant/AP Photo)





A Metropolitan Police wanted poster for Harvey Crippen and his accomplice Ethel Neve, along with a spade said to have been used in the murder of Crippens wife Cora in 1910, form part of the Crime Museum Uncovered exhibition at the Museum of London in the City of London, Wednesday, October 7, 2015. Crippen is infamous for being the first criminal to be captured with the aid of wireless telegraphy. (Photo by Alastair Grant/AP Photo)





A forged British 10 shilling note from the late 1950's is displayed as part of the Crime Museum Uncovered exhibition at the Museum of London in the City of London, Wednesday, October 7, 2015. (Photo by Alastair Grant/AP Photo)





One of Britain's most infamous criminals Ronald Kray's criminal record sheet, along with a hand gun which he used are displayed as part of the Crime Museum Uncovered exhibition at the Museum of London in the City of London, Wednesday, October 7, 2015. (Photo by Alastair Grant/AP Photo)