Because it's a violation of the don't use necromancy law of magic.
Because it's a violation of the don't use necromancy
on humans law of magic.
I am sure the law is vague enough to get away with it if they like him and to get him beheaded if they don't. A lot of them don't like him.
He got away with Sue but I think black court vampires can be seen as human bodies, you can also see it differently as complete seperate monsters.
But they are usually seen as dead human bodies so it also depends on what Harry really is doing with his necromancy, that is never stated.