C2009 The Identity of Jian Xie's Master?
Since Jian Xie knew that Black Dust Valley was not a prison, he knew that he just needed to ensure that Jiang Ting was unable to escape!
He only needed to ensure that Jiang Ting could be executed after ten years! As for before, everything didn't matter. Thus, when Ao Qiyu came to visit, he didn't object.
Of course, he also knew that it would be useless even if he were to object..