In R. v Cusick, the Ontario Superior Court upheld a search warrant of a computer where that computer was suspected of having been used to upload child pornography to a cloud storage service.
What one searches for, apparently, are ‘artifacts’ – digital traces of the child porn files that passed through the computer on the way to the cloud. The case notes the difference between uploading from the computer’s hard drive (in which case the files may also still be on the computer) and uploading from a USB drive or mobile device (in which case they may not be, . . . [more]