Alеxander Wilderness approached Roy Jean Evans as she was parking her car at midnight. Wilderness drew a gun and demanded money. When Evans resisted, Wilderness pistol-whipped her, took her car keys, shoved her into the back seat, confiscated her cellular phone so that she could not call for help, and drove away. Eventually Wilderness slowed the car and forced Evans out while the vehicle was still moving. A radio bulletin alerted police to the model and license number of the stolen car and the fact that the thief was armed and violent. At 4:45 a.m. officer Edward Dame of the Gary, Indiana, police found the car and followed footprints in the snow to a house about a block and a half away. Another officer came in response to a call for assistance. The two found Wilderness asleep in the house. His shoes matched the footprints they had followed. Wilderness revealed the location of the gun and cell phone and asked the police whether they hаd used the phone to trace him (for he had made a call after stealing the phone from Evans). Wilderness was convicted of carjacking, in violation of 18 U.S.C. § 2119, and оf using a firearm during a crime of violence, in violation of 18 U.S.C. § 924(c). The sentence was 235 months’ imprisonment — a shock to Wilderness, whose criminal career had thus far produсed only short terms meted out by state courts.
Wilderness pins his principal hope on persuading us that the district court erred in holding that the police were entitled to enter the house (and therefore to arrest him and seize the gun and phone, which made conviction inevitable). The prosecutor does not contend that the entry was justified as hot pursuit (but see
United States v. Santana,
Two witnesses told the truth and two lied. The district judge determined that the officers wеre the truth-tellers, and that Nich
*1175
ols and McKinley were the perjurers. A decision based on the resolution of a swearing contest cannot be clear error unless undisputed evidence is incompatible with the testimony the judge believed. See
Anderson v. Bessemer City,
His second contention is that his confession was inadmissible because he was only 16 at the time and lacked the assistance of either a parent or an attorney. The police gave Wilderness
Miranda
warnings at McKinley’s house. Gary notified the FBI of the carjacking, and agent Tom Gan-earz met Wilderness at the police station and gave another round of
Miranda
warnings. Wilderness signed a waiver form but inconsistently asked for an attorney; Gan-earz immediately ended the interview. Some 90 minutes later Wilderness asked to speak to Gancarz, who returned, read the
Miranda
warnings for a third time, and obtained a second written waiver. See
Edwards v. Arizona,
Indiana would not have permitted Wilderness’s confession to be used in a state prosecution. When Wilderness spoke with Gancarz, IC § 31 — 6—7—3(b) provided that a person under the age of 18 could waive a constitutional right in a criminal investigatiоn or proceeding only if the waiver was “made in the presence of his custodial parent, guardian, custodian, guardian ad litem, or attorney, and if the waiver [was] made knowingly and voluntarily.” (That statute has since been replaced by IC § 31-32-5-1, which limits waivers to those made
by
parents or counsel with the child’s consent.) But federal rather than state law determines the admissibility of evidence in federal prosecutions, and the voluntariness of a confession depends on public officials’ complianсe with constitutional norms, not on any rule of state law. We have held repeatedly that evidence may be used whether or not its acquisition violated state law. See
United States v. Delaporte,
Although federal courts do not enforce state rules for evidence gathering, a state law may identify factors that affect a confession’s voluntariness and reliability and therefore matter under federal law. It is easier to overbear the will of a juvеnile than of a parent or attorney, so in marginal cases— when it appears the officer or agent has attempted to take advantage of the susрect’s youth or mental shortcomings — -lack of parental or legal advice could tip the balance against admission. Moreover, even if the judge determinеs that a confession is voluntary, a defendant is entitled to urge the jury to discount the confession in light of circumstances, such as the absence of parental advice, that may diminish its reliability. 18 U.S.C. § 3501(a);
Crane v. Kentucky,
AFFIRMED.
