I think to determine if it is a 'hate crime' or not , you first need to determine WHY the security guard asked her to take it off. It was not covering her face. Many people wear bobble hats, beanie hats, deerstalkers, snoods, scarves etc etc, and without knowing for certain if he asked all of them to remove them as well, you can't really second guess his motives except you can actually, because i'm reasonably sure that if he'd asked a white girl to take off her bobble hat she bought from Primark because he felt she was a security threat, we'd have heard about it previous to this. So, that leaves us to ponder why he asked this young girl, to remove her obviously religious garment because he felt it was a 'security threat'. I don't know her colour, so I am left to assume it was because she is obviously Muslim, that this person is so terrified of a young girl in hijab that he thinks she might be a threat to other restaurant users. It doesn't matter why he discriminates, just that he does, whether this is out of ignorance, fear or both. Does that make it a hate crime? I'm afraid I think it might.