If CSW claims to control the keys, then those are stolen funds and must be surrendered. Failure to do so would be criminal or contempt or something bad.

Of course, if he then claims, the mobile wallet is watch only ... ... I have that too. I've been watching all the rich lists since before there was an official add address command with the help of pywallet. One could add the entire rich list and look like you have a nice wallet, but claim, it's locked with a passphrase that you can't remember.