There is no “scent” to data bits, especially those encoding pictures.
This is disinformation to let Immigration take a suspect’s computer “with a plausible reason.” Juries will believe this was a reasonable opening gambit to detecting porn, as long as authorities play it up that drugs can be successfully sniffed.
This is completely bogus, though.
Of course it is! People who can’t figure out how a thermos knows how to keep your coffee hot or your iced tea cold will buy it though.
Why would anyone even print such obvious nonsense?