If I may say this, if in making a decision, the minister considers--very hypothetically--hair colour, and that was the basis for denying a transfer, that would be communicated openly and transparently to the individual, and the individual can take whatever action they choose to take. Based on the court decisions so far, the courts have provided quite a bit of guidance as to what is relevant in the exercise of ministerial discretion.
On February 3rd, 2011. See this statement in context.