Petitioner, while attempting to enter the United States at San Ysidro, California, was subjected to a vaginal search which yielded approximately one ounce of heroin and petitioner was convicted of importing the substance. Conceding that the police were justified in causing her to submit to a body cavity search under the present 'clear indication' standard,1 petitioner urges the adoption of a rule that body cavity searches must be authorized by a warrant when time permits. It has long been held that the ordinary necessity for obtaining a warrant prior to a domestic search does not apply with full force to border searches. See Boyd v. United States, 116 U.S. 616, 623, 6 S. Ct. 524, 29 L. Ed. 746; Carroll v. United States, 267 U.S. 132, 154, 45 S. Ct. 280, 69 L. Ed. 543. But the stark contrast between permitting a minor customs official to make a warrantless search of baggage and permitting that same official to determine the instances in which intrusive and degrading vaginal and rectal searches will be conducted demonstrates the necessity for a delineation by this Court of the exact parameters of the border search exception.2 The record in Thompson v. United States, 9 Cir., 411 F.2d 946, 948, indicated that 80% to 85% of all those subjected to body cavity searches at the border are innocent of the suspected wrongdoing. This statistic shows the desirability of positing ultimate decision-making responsibility for this type of highly intrusive search with a 'neutral and detached magistrate' rather than a zealous officer 'engaging in the often competitive enterprise of ferreting out crime.'3