McNeil v. Wisconsin
United States Supreme Court
501 U.S. 171 (1991)
McNeil (defendant) was arrested for armed robbery in West Allis and, after being read Miranda warnings, refused to answer questions without ever asking for a lawyer; he was later represented by a public defender at his bail hearing. While still in custody, a detective investigating unrelated Caledonia crimes questioned McNeil on three separate occasions, reading Miranda warnings each time, and McNeil waived his rights each time and eventually implicated himself in those crimes. McNeil argued his Sixth Amendment invocation at the bail hearing should also have barred the detective's later Miranda-waived questioning.
Whether invoking the Sixth Amendment right to counsel at a judicial proceeding for one offense also invokes the Miranda right to counsel for other, uncharged offenses the police wish to question the defendant about.