1. The petitioner brought before the judge on the return of the writ may deny or controvert any of the material facts or matters set forth in the return or answer, deny the sufficiency thereof, or allege any fact to show either that the petitioner’s imprisonment or detention is unlawful or that the petitioner is entitled to discharge.
2. The judge shall thereupon proceed in a summary way to hear such allegation and proof as may be produced against or in favor of such imprisonment or detention, and to dispose of the case as justice may require.
3. The judge may compel the attendance of witnesses by process of subpoena and attachment and perform all other acts necessary to a full and fair hearing and determination of the case.