Thotas
First Post
I think that Thornir's point about the Evil descriptor as opposed to an evil alignment is the most crucial point here. Yes, it's true that the detect evil spell does detect strength gradients, and those are important too. Faint evil is easier to convert to another viewpoint than Overwhelming evil is, for obvious reasons, calling for different modes of dealing with the creature. But the descriptor is a measure not of the evil's strength, but it's nature. Inherent vs. learned, and that may make more difference to paladin than the strength of the evil does. So we have a lemure reading as "Moderate" according to the spell description, but you could have a Cleric who reads as "Overwhelming" once he can cast Blade Barrier, and as is pointed out earlier, if you read things as written, that Cleric could be LN! There's no indication that the Paladin (or anyone else casting Detect [any other alignment component]) can tell if the quality detected is instrinsic or not. So I'd say that for these reasons and others, (like polymorhed creaturess, and preventing dominated paladins from being the perfect murder weapon) I'd say no, the Paladin doesn't have the grounds to attack, but he's definately got the grounds to take a little extra caution and be ready to go if he needs to.