Patrols have been stepped up in the area and a mobile police station has been set up.
Miss O'Callaghan had an LG E900 Optimus mobile phone and police have asked for anyone who finds one to contact the force.
Miss O'Callaghan, who works as an office administrator, had an LG E900 Optimus mobile phone and police have asked for anyone who finds one to contact the force.
BBC: Police 'very close' to finding missing Sian O'Callaghan
They also found a mobile phone and when police traced its owner, his girlfriend, Ms Hutchison, admitted it was her who had been smoking.
Mr Balls was caught by the police using his mobile phone while driving during the 2010 general election campaign.
He was recorded by North Yorkshire Police's mobile safety camera on the A63 near Selby on 28 July last year.
C. police used Reality Mobile's software to distribute video among officers.
Local journalists said Mr Saunders was thought to have made a call by mobile phone to the Mountain Police Squad at Annecy on Saturday afternoon, saying his son had fallen and he could no longer see him.
Demonstrators used mobile phones to record the police's actions - this footage is now playing a significant role in the aftermath, not least that relating to the death of Ian Tomlinson, who was struck and pushed by an officer.
At least one company has begun marketing mobile drone command vans for police use that could be used at large public events such as the marathon and has been used at the Rose Bowl in past years and during the aftermath of Hurricane Katrina.
Police have recovered the young woman's Nokia mobile phone and her friend's shoes, the police document said.
Police said they used mobile phone records to track the kidnappers, according to AFP.
The cameras are the size of a mobile phone and clip on to police vests.
Mobile fingerprint scanners have helped a police force to identify more than 2, 200 people on the spot since August.
Certainly, activities such as emergency medicine and police work can use mobile imaging.
She added that police could also use mobile fingerprinting devices or carry facial recognition or "small CCTV cameras" to spot criminals.
The inquiry began after the alleged victim handed his mobile phone to officers at a police station and said he had been abused, according to The Guardian.
In the case of mobile phones, it's the police who appear to be losing.
Avon and Somerset Police say they can put mobile speed camera vans in problem areas.
Police say further use of mobile phone technology had produced several "hot spots" that specialist search teams are examining.
The suspects were making inquiries about Filin's schedule and whereabouts and bought SIM cards for mobile phones registered under fake names, police said.
The suspect, a 35-year-old Dutch citizen, traveled around Spain in a van he used as a mobile office, Spain's National Police said in a statement Sunday.
In July last year, Swindon Borough Council became the first English local authority to abandon speed cameras, but Wiltshire Police vowed to continue using mobile cameras.
Ms Henifin told agents they had been monitoring police radio communication on a mobile phone when they heard a report of a shooting and left the area, according to the complaint.
BBC: US border agents bust US-Canada 'ecstasy smuggling ring'
Police investigating computer hacking and stolen mobile phones have arrested a 48-year-old man.
After the sentencing, North Yorkshire Police urged people not to use mobile phones while driving, saying it leads to "horrific consequences".
The Home Office has failed to make the case for the new laws, not least by failing to show how the police use existing laws to monitor mobile phone data.
At the same time she, and the police, prepared for trouble by a number of ingenious administrative changes allowing the country's different police forces to concentrate large and mobile columns wherever needed.
The man then spoke to a woman police officer on the angler's mobile phone.
News Corp. chairman Rupert Murdoch is addressing analysts and press for the first time since his company became embroiled in a full-scale scandal over charges of mobile phone hacking and questionable payments to victims and police officers.
FORBES: Liveblog: Rupert Murdoch on News Corp. Earnings Call
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