29 In this case concerns of the kind discussed by Gray J, Anderson J and Roberts-Smith JA are particularly apposite. There is no evidence that the appellant will be afforded the privilege (it is not a right) of being moved to a lower security prison if his visa is not cancelled. Nor is there any evidence of when he would have been moved to a lower security prison, if that was to have happened but will not now happen. Similarly, there is nothing to say that the appellant will definitely be granted the privilege of re-entry release (again, this is not a right) if he is not to be deported. If he is to be granted that privilege, it will commence, at the earliest, on 1 March 2012, six months before he is due to be released. As I have said, no decision has yet been made whether or not the appellant will be deported. Consequently, the prospect of ineligibility for these privileges is merely speculative at this stage. The possibility that privileges that are granted only at the discretion of the executive (and, hence, would not ordinarily have been taken into account when sentencing an offender) might be denied seems to me to be an insufficient basis for interfering with the sentences imposed. Consequently, although I would be prepared to grant leave to make the amendment sought, and to introduce the evidence to which I have referred, I am not prepared to interfere with the sentences imposed upon the basis of the matters asserted in this ground.