I'm impressed at how I'm being dragged into a discussion about Muslim face veils...
I can see *why* people might think that being opposed to a ban is equivalent to supporting the oppression that the face veil tends to represent, but it's still mistaken. The point is that if it's wrong for husbands/brothers etc to tell women what to wear then it's also wrong for the state to do the same.
But even you don't support a ban you should clearly still want to discourage, as far as possible, the wearing of face veils. I think everyone's largely agreed on that point, and the only disagreement is how to achieve this. Legal means seem heavy-handed -- and, in any case, probably end up targeting the wrong person by definition. For, if a woman chooses to wear a face veil, then why should that not be her choice? And, if a woman is being coerced into doing so, then she shouldn't be made the criminal.