It has been more than six years since Madeleine McCann went missing from the Portuguese villa Praia da Luz, but advancements in mobile technology may prove crucial in solving the mystery of her disappearance.
Emma Murphy, Europe Correspondent for ITV News, reports:
– Detective Chief Inspector Andy Redwood
The information and purpose of this broader appeal is based on phone traffic analysis we have examined, which determines the footfall of people in the resort at that time. Our investigation in the UK remains ongoing.
Kate and Gerry McCann are to make a significant television appeal in light of "fresh, substantive" material unearthed as part of a British police investigation into their daughter's disappearance.
The McCanns will appear live in the studio during an episode of BBC Crimewatch on Monday October 14, which will also feature a reconstruction and pre-recorded interviews with the couple.
Scotland Yard is for the first time trawling through a vast log of mobile phone traffic identified in Praia da Luz, in Portugal, at the time of Madeleine's disappearance.
Scotland Yard is for the first time to trawl through a vast log of mobile phone traffic identified in Praia da Luz, in Portugal, at the time of Madeleine McCann's disappearance.
In a process detectives say could be key to discovering what happened to the-then three-year-old, any person who was present in the Algarve town on or around May 3 2007 could receive a phone-call from the Metropolitan Police.
Describing the programme, Assistant Commissioner Mark Rowley, of the Metropolitan Police, said: "It's substantially different. It's not just a bland 'can you help us' appeal, there is some different material and a different understanding to be presented."