Data recovery is a powerful concept within digital forensics. It is the process of retrieving deleted data from a device or SD card when it cannot be accessed normally. Being able to recover data that has been deleted by a user could help solve civil or criminal cases. This is because many accused just delete data from their device hoping that the evidence will be destroyed. Thus, in most criminal cases, deleted data could be crucial because it may contain information the user wanted to erase from their Android device. For example, consider the scenario where a mobile phone has been seized from a terrorist. Wouldn't it be of the greatest importance to know which items were deleted by them? Access to any deleted SMS messages, pictures, dialed numbers, and so on could be of critical importance as they may reveal a lot of sensitive information.
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