When can you take and publish pictures of people without their consent?
A legitimate, and interesting question, which might depend whose picture you’re taking.
Releasing Jeremy Corbyn’s image on Virgin trains was not a breach, according to the ICO…(it was in Virgin’s legitimate interest to show it, given the context of the news story). However, showing the faces of other passengers was a breach… here’s a link to the head of enforcement at the ICO’s blog
https://iconewsblog.wordpress.com/2017/07/12/when-is-a-breach-not-a-breach/
And to the picture of Jeremy Corbyn (in case you’d forgotten…)