Without the content of paragraph 3, we can't specify which premise the justices reject, but generally, justices may reject government premises based on legal unsoundness, unconstitutionality, or flawed reasoning, while using established benchmarks like precedent and constitutional provisions.
The student asked which premise given by the Government do the justices reject in paragraph 3, and on what grounds they reject the Government's premise. To answer this question accurately, we would need the specific content of paragraph 3, which is not provided. However, generally, justices may reject a Government's premise if it is found to be legally unsound, unconstitutional, or based on flawed reasoning or facts. Courts use a variety of benchmarks for such rejections, including prior case law (precedent), constitutional provisions, and the application of judicial review, to ensure that laws and government actions conform to the highest legal standards set by the country's constitution.