You'd be surprised.
Have to see the whole context to know.
that's one of the arguments used about 9/11, but they confiscated photos and vids. Even went door to door years later to make sure they got everything.
Also for the 1 / 6 protest in D.C. people found their images erased off their phones
I used a different kind of camera and got out of there with intact pics.
I believe with surveillance plus access they can wipe phone's images.
Happened at 1 / 6 according to more than one contact.