O'Sullivan v. Boerckel

Holding that, to ensure exhaustion a petitioner must present their claims throughout "one complete round of the State's established appellate review process."

Baldwin v. Reese

Holding that "ordinarily a state prisoner does not ‘fairly present’ a claim to a state court if that court must read beyond a petition or a brief (or a similar document) that does not alert it to the presence of a federal claim in order to find material ... that does so"

Strickler v. Greene

Holding that a newspaper article detailing that a witness had been interviewed by the police did not suffice to put a defendant's lawyer on notice that records and evidence concerning the witness existed and had been suppressed

Duncan v. Henry

Holding a claim raised in a state-court proceeding must be presented to that court as a federal constitutional claim or it is not exhausted for federal habeas corpus purposes

Kyles v. Whitley

Holding the State's disclosure obligation turns on the cumulative effect of all suppressed evidence favorable to the defense

Brady v. Maryland

Holding that the prosecution violates due process when it suppresses material, favorable evidence

United States v. Bagley

Holding that there was a Brady violation when federal prosecutors withheld evidence of inducements made to witnesses to encourage them to testify against the defendant

Johnson v. Williams

Holding "a fleeting reference to a provision of the Federal Constitution or federal precedent" is insufficient to exhaust a federal claim because "a state court may not regard [it] as sufficient to raise a separate federal claim"

Chapman v. California

Holding that error is harmless only if "harmless beyond a reasonable doubt"

Giglio v. United States

Holding that prosecution must disclose all information or material that may be used to impeach the credibility of prosecution witnesses where witness's credibility is "an important issue in the case"

Section 2254 - State custody; remedies in Federal courts

Holding that "a determination of a factual issue made by a State court shall be presumed to be correct" and "[t]he applicant shall have the burden of rebutting the presumption of correctness by clear and convincing evidence"

Section 2255 - Federal custody; remedies on motion attacking sentence

Adopting one-year limitations period for §2255 motions

Rule 403 - Excluding Relevant Evidence for Prejudice, Confusion, Waste of Time, or Other Reasons

Adopting a similar standard, but requiring the probative value to be "substantially outweighed" by these risks

Section 3500 - Demands for production of statements and reports of witnesses

Requiring the government to produce "any statement," including testimony provided before the grand jury, only after the witness has testified on direct examination at trial

Rule 401 - Definition of "Relevant Evidence."