Board Thread:Skyrim/@comment-12323583-20131117093148/@comment-24261859-20140126201328

Just FYI, the Dawnguard don't totally disregard the law. If you are a vampire, they get permission from the Jarl before coming after you (a little strange if you're the Thane of that hold, but whatever). For their quests, they're not actually breaking the law since the target is not an actual citizen, but are seen as breaking the law by those that don't know better. They advise you to get proof to show the Jarls of the threat so that your legitimacy is understood.