In People v. Hill, 39 Ill. 2d 125, 233 N.E.2d 367, 369 (Ill.), cert. denied, 392 U.S. 936, 20 L. Ed. 2d 1394, 88 S. Ct. 2305 (1968) a police detective questioned a suspect multiple times during a three hour period. The suspect was warned on the first occasion but those warnings were not renewed during the subsequent interviews. Id. The court held that "once Miranda's mandate was complied with at the threshold of the questioning it was not necessary to repeat the warnings at the beginning of each successive interview. To adopt an automatic second-warning system would be to add a perfunctory ritual to police procedures rather than providing the meaningful set of procedural safeguards envisioned by Miranda." Id. at 131-132.