(b) the acquisition would be invalid because of paragraph 51(xxxi) of the Constitution;
(2) If the Commonwealth and the person do not agree on the amount of the compensation, the person may take proceedings in the Federal Court for the recovery from the Commonwealth of such reasonable amount of compensation as the Court determines.
(3) In this section:
acquisition of property has the same meaning as in paragraph 51(xxxi) of the Constitution.
just terms has the same meaning as in paragraph 51(xxxi) of the Constitution.