Two men in the United Kingdom were sentenced to a £500 fine and a two year suspended sentence for possession of “disturbing” pornographic images. The images were described as “extreme pornographic image[s] likely to cause injury,” and “pornographic images involving animals.” (source)
The men claimed that they did not view the pornography, nor did they seek it out, but that the videos were sent to them via WhatsApp. When your receive a video or an image from that (or other messaging services) it often gets automatically added to a smartphone’s camera roll. The men were unaware of this fact, and carried the porn around for months before getting caught with it.