Belkar's Alignment

[LadyEowyn]

So the question is whether that would leyt you detect the thoughts of both the host and the vampire, or only of the vampire (since it doesn’t mention anything about what happens when there are two sets of thoughts within a single body). If it would work, it’s a good solution.

If it wouldn’t, it’s hard to know what would be the right course of action with regard to vampires whose other actions (i.e. apart from parasitism of the host) are non-evil. Kill them, and you may be killing someone who doesn’t deserve it; spare them, and you may be condemning a person to potentially centuries of psychic slavery.