The Right to Compulsory Process
The Sixth Amendment guarantees the right of the accused “to have compulsory process for obtaining witnesses in his favor.” The prosecutor has the power to compel witnesses to attend by using the police system at the government's disposal. Thus, the Sixth Amendment levels the playing field by allowing this same ability to the Defendant. See
Compulsory process may be obtained by issuing a subpoena. However, if necessary, an arrest warrant may be issued to compel a witness to appear before a court in order to provide material testimony.
EXAMPLE: Frank and Connie divorced recently under less than amicable conditions (Connie caught Frank cheating on her). On the night of September 7, 2015, Frank was at Connie’s house packing up some of his belongings. Connie kept close watch over him to make sure he didn’t take any of her Warren Zevon albums. Weeks later, Frank is arrested for a crime committed on the evening in question. Frank’s attorney asks Connie to make herself available as a witness because she can testify that Frank was with her at the time that the crime was committed. Connie refuses because, despite her efforts to monitor Frank, he managed to steal her signed copy of “Bad Luck Streak in Dancing School,” and she is really mad at him. When Connie receives the subpoena, she rips it up. On her appearance date she does not show up. Frank’s attorney can request that the court issue a bench warrant to secure Connie’s appearance to testify as to Frank’s whereabouts on the night in question.
The right to compulsory process can also be violated because of a judge’s behavior. If a judge is not even-handed in his warnings against perjury to prosecution and defense witnesses, or, by his behavior, causes a defense witness to fail to testify by intimidating the witness, the Sixth Amendment right to present a witness may have been violated. See
EXAMPLE: Judge Hank M. Hye is the presiding judge for Roland’s murder trial. When Roland’s brother takes the stand, Judge Hye gives him the following warning: “You should understand that committing perjury is a serious offense, a crime, and I will not hesitate to throw the book at anyone who lies while on the stand in my court. If you even come close to saying something that could be construed as less than honest I will personally make sure that Prosecutor Peters immediately files a charge of perjury against you and pursues your conviction with all possible zeal.” All other witnesses had simply been told “Perjury is an offense which we take seriously around here, so think before you speak.” If Roland’s brother now refuses to testify because of the judge’s remarks, Roland has been deprived of his right to present all favorable witnesses.
It is possible, however, to exclude a defendant’s favorable witness without running afoul of the Sixth Amendment. If a witness is known to the defense but not properly identified during pre-trial discovery, that witness’ testimony may be excluded as a sanction for violating the rules of discovery. See