Whether the Sixth Amendment right to compulsory process for obtaining defense witnesses applies to state criminal proceedings through the Fourteenth Amendment.
Holding
Yes. The right to compulsory process is fundamental and essential to a fair trial and therefore applies to the States through the Fourteenth Amendment’s Due Process Clause.
Reasoning
The Court had already held that several Sixth Amendment guarantees—including counsel, confrontation, speedy trial, and public trial—are fundamental components of due process in state prosecutions. The right to compulsory process stands on the same constitutional footing because a meaningful defense requires more than merely challenging the State’s evidence.
Compulsory process is, in practical terms, part of the accused’s right to present a defense. It gives a defendant the means to present his own version of events through witnesses and permits the jury, rather than the government alone, to hear evidence bearing on where the truth lies.
The history of the Clause reinforced that conclusion. The Framers adopted it against a common-law background in which defendants accused of serious crimes had once been forbidden to call defense witnesses at all. The constitutional guarantee was meant to ensure that the accused could obtain and use witnesses in his favor.