The U.S. Supreme Court case Michael Yarborough, Warden, et al. v. Lionel E. Gentry in 2003 revolved around the issue of whether a state court's application of the "totality of circumstances" test to determine if an accused juvenile had waived his Miranda rights was objectively unreasonable under federal law standards set by previous Supreme Court cases like Fare v. Michael C., which also dealt with juveniles and their Miranda rights during police interrogations. Lionel E. Gentry was convicted for murder as a minor after confessing to the crime during police interrogation without any legal counsel present or parental consent obtained beforehand; he later appealed on grounds that his confession should have been suppressed because it violated his Fifth Amendment right against self-incrimination due to him being a minor at that time. However, both California courts and Federal District Court rejected this argument stating that considering all factors (like age, education level etc.) involved in this case - there wasn't any coercion from law enforcement side while obtaining confession from Gentry hence it doesn't violate Fifth Amendment protections. This decision was upheld by U.S Supreme Court too when they denied certiorari review saying lower courts didn't unreasonably apply 'totality of circumstances' test here.

In the dissenting opinion for Yarborough v. Gentry, Justice Stevens argued that the majority's decision to overturn a lower court ruling granting habeas corpus relief was incorrect. He contended that Lionel Gentry had received ineffective counsel during his trial because his attorney failed to object when prosecutors introduced evidence of prior convictions and did not request jury instructions on lesser charges. Justice Stevens believed these failures significantly impacted the outcome of Gentry's case, leading to an unfair conviction and sentence. In addition, he criticized the majority for failing to give due deference to state courts' findings regarding ineffective counsel claims under Strickland v. Washington (1984). He concluded by expressing concern about how this ruling might affect future cases involving claims of ineffective assistance of counsel.