Whether instructing a jury that every witness is presumed to speak the truth violated due process by undermining the presumption of innocence or shifting the State's burden to prove guilt beyond a reasonable doubt.
Holding
No. In the context of the entire charge, the instruction did not so infect the trial as to deny Naughten due process.
Reasoning
A federal habeas court may not invalidate a state conviction merely because a jury instruction is undesirable, erroneous, or widely condemned in federal appellate decisions. Many federal courts had disapproved similar instructions while exercising supervisory authority over federal trial courts—a power that permits them to require sound procedures beyond constitutional minimums. That consensus therefore did not itself establish a Fourteenth Amendment violation in an Oregon trial.
The constitutional inquiry concerns the charge as a whole, rather than an isolated phrase. A single instruction can sometimes create constitutional error, but a court must assess whether the challenged language so infected the entire trial that the resulting conviction was fundamentally unfair.
Here, the judge expressly instructed the jury twice that Naughten was presumed innocent and that the State bore the burden of proving guilt beyond a reasonable doubt. Unlike In re Winship, where the factfinder applied an expressly insufficient preponderance standard, this case involved a charge that repeatedly reaffirmed the constitutionally required standard.
The truthfulness instruction did not, by its terms, shift the burden of proof or negate the presumption of innocence. It also told jurors that they could reject testimony based on demeanor, the substance of the testimony, contradictions, character, interest, or motives to lie. Thus, jurors retained their ordinary role of deciding credibility and were not required to accept the prosecution's witnesses uncritically.
Any theoretical tension between a presumption that witnesses speak truthfully and the State's reasonable-doubt burden was too tangential to rise to constitutional dimension. The instruction therefore neither violated Winship nor offended a principle of justice so fundamental as to be protected by the Due Process Clause.