[Tharkun]

Hiding your face is illegal in Belgium at least. This includes masks, helmets etc. I don't know the exact wording, but I would suspect that it's broad enough to include umbrellas and makeup and anything else that effectively makes it impossible to recognize a person.

[raxxorrax]

Officially surveillance is illegal too. But that probably doesn't mean much anyway.

[Tharkun]

Sure, but the people doing the surveilling are also the people who will fine or arrest you for covering your face. Not sure I understand what you're trying to say?