The FBI and London metropolitan police each investigate fewer than 100 contract killings per year, on average.

美国联邦调查局(FBI)和伦敦警察局平均每年各自调查不到100起雇凶杀人案件。

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Uniforms used on TV series "the Bill" have been bought by the London Metropolitan Police to stop them falling into the hands of criminals, BBC reported.

据英国广播公司报道，伦敦大都会警察局买下电视剧《警务风云》中使用过的所有警用制服，以防这些衣服落入坏人手中。

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The Metropolitan police later revealed it had considered switching off social networks during the disorder in London, but had decided not to on legal advice.

大都会警方之后透露，警方已考虑在伦敦混乱期间断开社交网络，但最终在法律建议下决定不这样做。

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It took armed officers 14 minutes to arrive, according to London Metropolitan Police.

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"My officers need to focus on rioters and looters, not those vigilantes, " said Steve Kavanagh, deputy assistant for the London Metropolitan Police.

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Mr. Kelly said the department had been working with a security-and-surveillance systems manufacturer based in Britain, along with the London Metropolitan Police, to develop the device.

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