Repository Collection 03
Smith v. Cain
565 U.S. 73 (2012)
CASE ENTRY
Last Revised • July 4, 2026
Smith v. Cain reaffirmed and strengthened the constitutional principles established in Brady v. Maryland. The United States Supreme Court held that evidence affecting the credibility of a key prosecution witness must be disclosed when there is a reasonable probability that the outcome of the trial would have been different had the evidence been provided to the defense.
“and its progeny; Smith v. Cain, 565 U.S. (2012);…”
Related SMAR Citation
Case Name
Smith v. Cain
Citation
565 U.S. 73 (2012)
Date
January 10, 2012
Verification Source
Official United States Supreme Court opinion located through Justia.
Source Location
United States Supreme Court Opinion
Highlighted Pages
73
Referenced in the Supplemental Motion
Page 6, Paragraph 6
✔ Original United States Supreme Court opinion obtained and reviewed
✔ Relevant holding highlighted
✔ Publicly available source
✔ Included within the Source Verification Archive
May's allegation that material impeachment and exculpatory evidence concerning key prosecution
witnesses and the underlying investigation was withheld from the defense. May cites Smith v. Cain
to support the principle that undisclosed evidence affecting the credibility of a critical prosecution
witness may be material under Brady when there is a reasonable probability that disclosure would
have affected the outcome of the trial. May relies upon this authority to support his claim that
suppressed evidence bearing upon witness credibility, reliability, and truthfulness undermines
confidence in the verdict rendered against the Defendant.
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