That's a nice question. I always have been in awe of both these characters- Dexter Morgan and Patrick Jane. To start with, not necessarily every person has two sides to his psyche. read more
So, if Patrick Jane meets Dexter Morgan, he might be able to tell that Dexter is unstable, but he might not be able to uncover the gory secrets Dexter hides, unless Dexter decides to talk to Patrick Jane about it. read more
Patrick Jane is not a believable character, while Dexter is more believable. There are Serial killers that have not been caught in real life, but there is no one like Patrick Jane. No one can manipulate like him, no one has that good a memory and no one can take in and proccess the infomation that he does. read more
BUT if Jane could face Dexter, at the first time he will knows about Dexter's secret and i assure you that Dexter doesn't have any idea who this blonde guy is.(Check mate) if Dexter could take a leap forward to hiding or covering some evidences. jane will and always knows. read more