MR. JUSTICE BLACK delivered the opinion of the Court.

Petitioner, while imprisoned in a federal penitentiary, was denied habeas corpus by the District Court.[n1]Later, [p459] that court granted petitioner a second hearing, prompted by

the peculiar circumstances surrounding the case and the desire of the court to afford opportunity to present any additional facts and views which petitioner desired to present.

Upon consideration of the second petition, the court found that it did "not substantially differ from the" first, "and for the reasons stated in the decision in that case" the second petition was also denied.

Petitioner is serving sentence under a conviction in a United States District Court for possessing and uttering counterfeit money. It appears from the opinion of the District Judge denying habeas corpus that he believed petitioner was deprived, in the trial court, of his constitutional right under the provision of the Sixth Amendment that "In all criminal prosecutions, the accused shall enjoy the right . . . to have the Assistance of Counsel for his defence."[n2]However, he held that proceedings depriving petitioner of his constitutional right to assistance of counsel were not sufficient

to make the trial void and justify its annulment in a habeas corpus proceeding, but that they constituted trial errors or irregularities which could only be corrected on appeal.

The Court of Appeals affirmed,[n3]and we granted certiorari due to the importance of the questions involved. [n4]

The record discloses that:

Petitioner and one Bridwell were arrested in Charleston, South Carolina, November 21, 1934, charged with [p460] feloniously uttering and passing four counterfeit twenty-dollar Federal Reserve notes and possessing twenty-one such notes. Both were then enlisted men in the United States Marine Corps, on leave. They were bound over to await action of the United States Grand Jury, but were kept in jail due to inability to give bail. January 21, 1935, they were indicted; January 23, 1935, they were taken to court, and there first given notice of the indictment; immediately were arraigned, tried, convicted and sentenced that day to four and one-half years in the penitentiary, and January 25, were transported to the Federal Penitentiary in Atlanta. While counsel had represented them in the preliminary hearings before the commissioner in which they -- some two months before their trial -- were bound over to the Grand Jury, the accused were unable to employ counsel for their trial. Upon arraignment, both pleaded not guilty, said that they had no lawyer, and -- in response to an inquiry of the court -- stated that they were ready for trial. They were then tried, convicted and sentenced, without assistance of counsel.

Both petitioners lived in distant cities of other states, and neither had relatives, friends, or acquaintances in Charleston. Both had little education, and were without funds. They testified that they had never been guilty of nor charged with any offense before, and there was no evidence in rebuttal of these statements. [n5]