Reported crime on the Southern Railway network fell last year by 7.2%, according to British Transport Police.

BBC: Southern train

The raids centre on the 'Ndrangheta crime network and its activities in tourism.

BBC: Northern Ireland man arrested in 'Ndrangheta raids

It said the figures for last year were consistent with a downward trend on previous years and represented just one crime committed for every 50, 000 journeys made on the network.

BBC: Southern train

"There can be no reasonable expectation of privacy in a tweet sent around the world, " wrote the judge, who went on to compare information posted on a public network to an eyewitness's account of a crime on the street.

CNN: Heather Kelly,

But he found that a network of the city's anti-crime cameras, mounted on streetlights, was still pretty much intact.

NPR: New Orleans May Lose Wireless Network

She proposed a round-the-clock cyber-crime network, along with the regional computer forensic labs and a secure on-line clearinghouse for law enforcement to share information about cyber-cases.

CNN: Government sees cyber-attacks as disruption of commerce

But the police and city officials have cited that fact as evidence of an organised crime network, and since 1992 the task force has been arresting peddlers on more serious criminal charges.

ECONOMIST: African immigrants