do we really know the truth?

just a hypothetical case. nguyen tuong van is an australian. very likely the australian police could have been monitoring his movements. there is always a possibility that the australian police tipped thir singapore counterparts and let the singapore police stop him from reaching australia. the outcry could be just a show to tell the australian public that the australian authority has nothing to do with nguyen's arrest. but imagine the kind of damage nguyen would have done to the australians if he could unload his goodies there. we just would not know the truth...