{"argument_date":"2003-12-09T00:00:00Z","arguments":[{"argument_date":"2003-12-09T00:00:00Z","heading":"What happened at the argument","official_detail_url":"https://www.supremecourt.gov/oral_arguments/argument_transcript/2003","official_transcript_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","paragraphs":["Missouri's counsel argued the later statement is admissible if preceded by warnings.","The defendant's counsel argued the first unwarned statement taints the second.","The Court asked about good faith mistakes and coercive pressures."],"reargument":false,"sequence":1,"sources":[{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 18, lines 37-15","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 18, lines 37-15"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 27, lines 13-19","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 27, lines 13-19"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 3, lines 15-9","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 3, lines 15-9"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 3, lines 5-13","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 3, lines 5-13"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 50, lines 23-15","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 50, lines 23-15"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 51, lines 17-27","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 51, lines 17-27"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 53, lines 29-33","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 53, lines 29-33"}]}],"caption":"Missouri v. Siebert","case_history":[{"changed_at":"2026-08-29T20:06:30.779079Z","explanation":"An official oral-argument transcript was verified.","status":"argued"},{"changed_at":"2026-08-29T20:06:30.795208Z","explanation":"An official oral-argument transcript was verified.","status":"argued"}],"case_status":"argued","dek":"Missouri seeks to admit a later confession. The defendant argues the first unwarned statement poisoned the second.","dek_sources":[{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 18, lines 37-15","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 18, lines 37-15"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 27, lines 13-19","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 27, lines 13-19"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 3, lines 15-9","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 3, lines 15-9"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 50, lines 23-15","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 50, lines 23-15"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 51, lines 17-27","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 51, lines 17-27"}],"dispositions":[],"latest_court_document_date":"2003-12-09T00:00:00Z","maturity":"official_transcript","official_detail_url":"https://www.supremecourt.gov/oral_arguments/argument_transcript/2003","official_disposition_urls":[],"official_docket_url":"https://www.supremecourt.gov/docket/docketfiles/html/public/02-1371.html","primary_docket":"02-1371","revisions":[{"correction_note":"Rewritten to the concise citizen-facing editorial standard.","created_at":"2026-08-31T16:03:20.858306Z","maturity":"official_transcript","revision_number":1},{"correction_note":"Migrated to the dated official Court activity contract without model use.","created_at":"2026-09-05T03:22:24Z","maturity":"official_transcript","revision_number":2}],"schema_version":"1.1","sections":[{"heading":"What this case is about","paragraphs":["The Court must decide if a police officer's failure to give Miranda warnings before an initial statement automatically makes a subsequent warned statement inadmissible. the side that brought the case argues the later statement stands alone. the opposing side argues the first statement taints the second."],"sources":[{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 18, lines 37-15","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 18, lines 37-15"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 27, lines 13-19","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 27, lines 13-19"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 3, lines 15-9","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 3, lines 15-9"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 50, lines 23-15","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 50, lines 23-15"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 51, lines 17-27","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 51, lines 17-27"}]},{"heading":"How the case got here","paragraphs":["The Supreme Court heard oral argument in this case on December 9, 2003."],"sources":[{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 3, lines 5-13","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 3, lines 5-13"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 53, lines 29-33","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 53, lines 29-33"}]},{"heading":"What each side wants","paragraphs":["Missouri wants the Court to admit the later warned confession.","The defendant wants the Court to exclude the later confession."],"sources":[{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 18, lines 37-15","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 18, lines 37-15"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 27, lines 13-19","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 27, lines 13-19"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 3, lines 15-9","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 3, lines 15-9"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 50, lines 23-15","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 50, lines 23-15"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 51, lines 17-27","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 51, lines 17-27"}]},{"heading":"What each side says","paragraphs":["Missouri argues an unwarned statement does not presumptively taint a later warned statement.","The defendant argues an unwarned statement cannot be used to prove guilt."],"sources":[{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 18, lines 37-15","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 18, lines 37-15"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 27, lines 13-19","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 27, lines 13-19"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 3, lines 15-9","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 3, lines 15-9"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 50, lines 23-15","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 50, lines 23-15"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 51, lines 17-27","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 51, lines 17-27"}]},{"heading":"What the justices asked","paragraphs":["Chief Justice Rehnquist asked if a good faith mistake avoids coercive pressures."],"sources":[{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 53, lines 29-33","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 53, lines 29-33"}]},{"heading":"Why it matters","paragraphs":["This case defines when police can use a later confession after an initial warning failure. It shapes how courts evaluate the admissibility of sequential statements. It impacts the balance between police procedure and defendant rights."],"sources":[{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 18, lines 37-15","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 18, lines 37-15"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 27, lines 13-19","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 27, lines 13-19"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 3, lines 15-9","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 3, lines 15-9"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 50, lines 23-15","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 50, lines 23-15"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 51, lines 17-27","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 51, lines 17-27"}]},{"heading":"What happens next","paragraphs":["This article currently covers the argument record. Use the official docket link for later case activity."],"sources":[{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 3, lines 5-13","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 3, lines 5-13"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 53, lines 29-33","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 53, lines 29-33"}]}],"slug":"2003-02-1371-missouri-v-siebert","term":"2003","title":"Does an early unwarned statement taint a later warned confession?","title_sources":[{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 18, lines 37-15","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 18, lines 37-15"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 27, lines 13-19","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 27, lines 13-19"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 3, lines 15-9","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 3, lines 15-9"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 50, lines 23-15","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 50, lines 23-15"},{"evidence_type":"Transcript","label":"Official Supreme Court Transcript — file page 51, lines 17-27","official_url":"https://www.supremecourt.gov/pdfs/transcripts/2003/02-1371.pdf","page_label":"file page 51, lines 17-27"}],"topics":[],"undated_disposition_date_fallback":null,"updated_at":"2026-09-05T03:22:24Z"}