[Cory]

Originally Posted by shyra1353

Cory: Dumbledore trusted Snape because Smape told him that it was he who had told Voldemort about the prophecy. I don't quite understand how that makes Dumbledore trust him, but it's the reason that he gives Harry. I think there is something more to it though. Think maybe Snape had to do something to prove his loyalty to Dumbledore?

He did give that as a reason. but I don't see how Dumbledore can unconditionally trust him because of that. There has to be something more.