New technique unlocks hidden history of a phone
Thursday, September 9th, 2010
(WARWICKSHIRE, UK) Mobile phones have always been a rich source of forensic evidence in criminal investigations – but, until now, there has been a level of evidence which investigators have been missing out on. Developers at CCL-Forensics have taken a major step towards addressing this problem with a technique to interpret and present a phone’s web cache files, showing a subject’s internet history and activity.
Many phone forensic tools may extract these files, but will do little nothing to interpret them or present the investigator with the potentially vital evidence they contain. CCL-Forensics has created MWCT (Mobile Web Cache Toolkit) which it can use in-house during investigations for police and law enforcement agencies.
It allows the company’s digital analysts to carry out an in-depth investigation into the phone’s usage and enhances the basic information (calls, text messages, deleted data) extracted during a typical forensic analysis.
This valuable data could be deleted – and is often extracted during the acquisition process. MWCT turns this raw data into useful information – and ultimately into evidence.
The tool also has the additional functionality to present CCL-Forensics’ investigators with loose web cache files which can’t be linked to any web pages, but still contain date and time information, and can provide potentially vital evidence.
An example is shown in a brief web video (which can also be found here).
Phil Ridley, Mobile Phone Lab Manager at CCL-Forensics says: “Phone forensics is about much much more than simply extracting call logs and text messages.
Many devices retain a wealth of information which can be used as part of an investigation – and this data is not difficult to extract.
It is the interpretation of this data which is crucial. MWCT presents our analysts with a plethora of potential evidence which they wouldn’t have had access to without this tool.
A suspect’s web history can form a vital part of a prosecution case, as it can reveal their browsing habits and crucially nowadays, social networking activity. It is inconceivable that an investigator won’t want to know about a suspect’s associations and communications history”
MWCT was developed by the in-house research and development team at CCL-Forensics, the UK’s leading supplier of mobile phone forensics, computer forensics and cell site analysis services to the law enforcement and investigatory community.
For more information, please contact Marketing Manager Andy Holmes on +44 1789 261200 or at aholmes@ccl-forensics.com. Brief web videos about CCL-Forensics’ research and development projects can be found at http://www.youtube.com/user/cclforensicslimited.
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