About the time William Rehnquist ascended to the Chief Justiceship of the United States, two events occurred that increased the likelihood that Miranda would enjoy a long life. In Moran v. Burbine,' a 6-3 majority held that a confession preceded by an otherwise valid waiver of a suspect's Miranda rights should not be excluded either (a) because the police misled an inquiring attorney when they told her they were not going to question the suspect she called about or (b) because the police failed to inform the suspect of the attorney's efforts to reach him.
Kamisar, Yale. "Confessions, Search and Seizure and the Rehnquist Court." Tulsa L. J. 34, no. 3 (1999): 465-500.