| Type | Case | Citation | Issues | Joined by | Other opinions |
201
| Chambers v. United States | 555 U.S. 122 (2009)
| Armed Career Criminal Act • definition of "violent felony" | Thomas | |
| |
202
| Locke v. Karass | 555 U.S. 207 (2009)
| First Amendment • public employee union fees imposed on nonmembers | Roberts, Scalia | |
| |
103
| Pearson v. Callahan | 555 U.S. 223 (2009)
| qualified immunity • Fourth Amendment • consent-once-removed doctrine | Unanimous | |
| |
104
| Fitzgerald v. Barnstable School Comm. | 555 U.S. 246 (2009)
| Fourteenth Amendment • Equal Protection Clause • sex discrimination • Title IX • section 1983 | Unanimous | |
| |
205
| Crawford v. Nashville | 555 U.S. 271 (2009)
| Title VII • antiretaliation provision | Thomas | |
| |
106
| Pleasant Grove City v. Summum | 555 U.S. 460 (2009)
| First Amendment • free speech • government speech • public forums | Roberts, Stevens, Scalia, Kennedy, Thomas, Ginsburg, Breyer | |
| |
407
| Wyeth v. Levine | 555 U.S. 555 (2009)
| Food, Drug, and Cosmetic Act • FDA-approved pharmaceutical labeling • federal preemption • failure-to-warn of risks | Roberts, Scalia | |
| |
108
| Kansas v. Colorado | 556 U.S. 98 (2009)
| original jurisdiction • award of expert witness attendance fees • Arkansas River Compact | Unanimous | |
| |
109
| Hawaii v. Office of Hawaiian Affairs | 556 U.S. 163 (2009)
| Hawaii Admission Act • Apology Resolution • disposition of land ceded to State upon admission to Union | Unanimous | |
| |
410
| Corley v. United States | 556 U.S. 303 (2009)
| confession after unreasonable delay • Federal Rules of Criminal Procedure • voluntariness of confession | Roberts, Scalia, Thomas | |
| |
411
| Arizona v. Gant | 556 U.S. 332 (2009)
| Fourth Amendment • search incident to arrest • vehicle search | Roberts, Kennedy; Breyer (in part) | |
| |
412
| Nken v. Holder | 556 U.S. 418 (2009)
| immigration law • Illegal Immigration Reform and Immigrant Responsibility Act of 1996 • stay of removal order | Thomas | |
| |
313
| Cone v. Bell | 556 U.S. 449 (2009)
| Fourteenth Amendment • Due Process Clause • state suppression of mitigating evidence • adequate and independent state ground | | |
| |
214
| Flores-Figueroa v. United States | 556 U.S. 646 (2009)
| federal criminal law • identity theft • knowing use of another person's identification | | |
| |
215
| Montejo v. Louisiana | 556 U.S. 778 (2009)
| Fifth Amendment • right against self-incrimination • police interrogation after invocation of right to counsel | Kennedy | |
| |
116
| Boyle v. United States | 556 U.S. 938 (2009)
| Racketeer Influenced and Corrupt Organizations Act • association-in-fact enterprise | Roberts, Scalia, Kennedy, Souter, Thomas, Ginsburg | |
| |
417
| Megginson v. United States | 556 U.S. 1230 (2009)
| Fourth Amendment • search incident to arrest • vehicle search | | |
| Alito dissented from the Court's summary vacatur and remand. |
418
| Grooms v. United States | 556 U.S. 1231 (2009)
| Fourth Amendment • search incident to arrest • vehicle search | | |
| Alito dissented from the Court's summary vacatur and remand. |
219
| Polar Tankers, Inc. v. City of Valdez | 557 U.S. 1 (2009)
| Tonnage Clause • local property tax on vessels | | |
| |
220
| District Attorney's Office for Third Judicial Dist. v. Osborne | 557 U.S. 52 (2009)
| Due Process Clause • postconviction access to state evidence for DNA testing • substantive due process | Kennedy; Thomas (in part) | |
| |
421
| Yeager v. United States | 557 U.S. 110 (2009)
| Double Jeopardy Clause • issue preclusion • inconsistency between acquittal and hung jury | Scalia, Thomas | |
| |
422
| Atlantic Sounding Co. v. Townsend | 557 U.S. 404 (2009)
| maritime law • Jones Act • punitive damages | Roberts, Scalia, Kennedy | |
| |
123
| Horne v. Flores | 557 U.S. 433 (2009)
| Equal Educational Opportunities Act of 1974 • state funding of English language instruction • Article III • standing • Federal Rules of Civil Procedure • relief from judgment based on changed circumstances • No Child Left Behind Act | Roberts, Scalia, Kennedy, Thomas | |
| |
224
| Ricci v. DeStefano | 557 U.S. 557 (2009)
| Title VII • disparate impact • exams used for employee promotions | Scalia, Thomas | |
| |
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