an apparent contradiction in Dembski

At one point he affirms a kind of law of conservation of information, but at another point he says that a simple roll of the dice can increase the amount of information.  Is the latter an exception because of the role of a human intelligence?  But that intelligence did not know the outcome: it could have been replaced by a dice rolling machine, etc.  Or a natural event could have caused the dice to roll.  In such a case, would information have been increases or decreased?