476 U.S. 683 (1986)
On August 7, 1981, a clerk at the Keg Liquor Store in Louisville, Kentucky, was shot to death during an apparent robbery, with no identifying physical evidence initially available.1 A week later, police arrested sixteen-year-old petitioner for suspected involvement in an unrelated service station holdup.2 During interrogation, petitioner confessed to multiple local crimes, including the Keg Liquors shooting after initially denying involvement.3
Petitioner was indicted for murder and moved to suppress his confession, claiming it was coerced.4 At the suppression hearing, he testified that he was detained in a windowless room for a long time, surrounded by up to six officers, repeatedly denied permission to call his mother, and badgered into a false confession.5 Police officers provided a contrasting account, and the trial court found no coercion or overreaching, denying the motion.6
At trial, the prosecutor highlighted the confession and an uncle's statement as the main evidence.7 Defense counsel planned to challenge the confession's credibility by pointing to inconsistencies, such as the time of the crime and whether money was taken, and by introducing evidence about the interrogation circumstances.8 The prosecutor moved in limine to bar testimony on the confession's circumstances, arguing it pertained only to voluntariness already decided by the court.9
The trial court granted the motion, allowing inquiry into inconsistencies but prohibiting evidence on the interrogation's duration or attendees.10 Petitioner preserved a record of the excluded evidence, which included police testimony on the interrogation room's physical characteristics, the interview length, and other details.11 The jury convicted petitioner of murder and sentenced him to forty years in prison.12
On appeal, the Kentucky Supreme Court affirmed the conviction, reasoning that the excluded testimony related solely to voluntariness under state procedure.13 The United States Supreme Court granted certiorari to review the constitutional claim.14
Whether the trial court's ruling excluding testimony about the circumstances of the confession deprived the petitioner of his rights under the Sixth and Fourteenth Amendments to the Federal Constitution?15
The Constitution guarantees criminal defendants a meaningful opportunity to present a complete defense.16 This right is rooted directly in the Due Process Clause of the Fourteenth Amendment or in the Compulsory Process or Confrontation Clauses of the Sixth Amendment.17 It ensures that a defendant is not disabled from challenging the reliability of a confession.18 Evidence about the manner in which a confession was secured is often highly relevant to its probative weight.19 This is a matter exclusively for the jury to assess.20 A defendant has been free to familiarize the jury with circumstances that attend the taking of his confession, including facts bearing upon its weight and voluntariness.21
Yes. The established facts demonstrate that petitioner, a sixteen-year-old arrested for an unrelated crime, confessed to the murder after being transferred to a juvenile detention center.22 At the suppression hearing he described being held in a windowless room surrounded by up to six officers and denied contact with his mother.23 At trial, although the prosecutor emphasized the confession as central to the case, the defense was barred from presenting the details of the interrogation setting to the jury despite its potential to cast doubt on the confession's credibility.24 The Kentucky Supreme Court upheld this exclusion on the ground that it pertained only to the already-decided voluntariness issue.25 This application of state evidentiary procedure conflicts with the constitutional requirement that defendants receive a fair opportunity to present a defense.26 The circumstances of the confession were indispensable to the petitioner's ability to answer why an innocent person would admit guilt.27 The exclusion was not supported by any asserted state interest in reliability or fairness.28
The rule requires that such evidence be admitted when it is competent and central to the defense.29 Here the facts show the petitioner preserved the record of the excluded police testimony on the room's characteristics and interview length.30 This makes clear that the ruling prevented a meaningful adversarial testing of the prosecution's case.31
The trial court's ruling excluding testimony about the circumstances of the confession deprived the petitioner of his rights under the Sixth and Fourteenth Amendments to the Federal Constitution.32