Network Rail is to deploy new technology to help fight the theft of railway cables. In the West Midlands alone, 462 trains were cancelled and others were delayed by nearly 74,000 minutes over the last year.rnTrackside cable in parts of the West Midlands is now marked with a forensic liquid called SmartWater, which has over a billion different chemical code combinations and can only be seen under ultra-violet light. Every kilometre of cable is being marked with a different code so that police can pinpoint the exact location from which it was taken, providing a link between the criminal and the crime scene.
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