Interesting case in the news recently.
Laurence Fox was charged with upskirting, because he shared a photo that someone else had taken.
Under s66A of the SOA 2003, this is an offence, if the person who shares the image does so either to cause humiliation and distress, OR for sexual gratification.

I expect it was probably to cause humiliation, not for sexual gratification, but if sentenced to a 12 months community order, or imprisonment, he will go on the SOR anyway. The photo was actually taken before upskirting was an offence, so I wonder if that will make any difference?