They are actively searching people's computers because that's exactly what the customer is asking them to do. This is how 'undelete' software works - you scan a

They are actively searching people's computers because that's exactly what the customer is asking them to do. This is how 'undelete' software works - you scan all sectors, take everything that looks like it might at some point have been part of an operational filesystem, then re-assemble sectors back into files. You then have to check if those files are actually what the algorithm thought they were. I can somewhat understand that a defense lawyer tries to muddle the waters to get his client off (as is done in the OP), but the comments on here claiming that this is somehow unusual or going beyond normal data recovery work leave me slapping my forehead.