Seeing as it's effectively modern day, there'd be a fair few cameras. However though due to the existence of magic there may be different forms of technology. For example,: magic sensitive cameras, for the vampires, ghosts, abd ghoulies. This may mean Mia's glamour is picked up on magic sensitive cameras, but not on basic cameras.

[quote=@Expendable]
I had a thought - Mia's glamor that allows her to pass as human? It doesn't work on mirrors or cameras. While I'm not sure how much tech is in this world, there is likely to be mirrors.
[/quote]