Carlos Zarate Liera (“Liera”) was convicted of two counts of bringing aliens into the United States for financial gain and aiding and abetting, in violation of 8 U.S.C. § 1324(a)(2)(B)(ii) and 18 U.S.C. § 2. Liera was also convicted of two counts of bringing aliens into the United States without presentation, in violation of 8 U.S.C. § 1324(a)(2)(B)(iii). On appeal, Liera’s primary argument is that the district court erred by not suppressing incriminating statements Liera made to law enforcement officers during the time they unreasonably and unnecessarily delayed presenting him before a magistrate judge for arraignment. 1 We have jurisdiction under 28 U.S.C. § 1291. We agree and vacate Li-era’s convictions and remand for a new trial.
i. Facts
On February 15, 2007, at about 4:15 a.m., Liera entered the United States from Mexico at the Calexico West Port of Entry. Liera was driving a 1989 Chevrolet pickup truck with Mexican license plates. During a border search of the truck, Customs and Border Protection (“CBP”) officers found two unrelated aliens, Le Chen and Wu Chen, under the truck’s hood lying in separate built-in compartments located on each side of the engine. 2 CBP officers *1240 also found a cell phone. It is unclear whether the cell phone was found in the truck or whether the cell phone was found in one of Liera’s pockets during a pat-down search.
Following Liera’s arrest, CBP Officer Figueroa interrogated Liera on two separate occasions. 3 At 9:18 a.m., about five hours after Liera’s arrest, Officer Figueroa interrogated Liera for the first time. During this first interrogation, Liera denied knowing that Le Chen and Wu Chen were under the truck’s hood. Liera told Officer Figueroa that the truck belonged to his uncle’s neighbor, Raul Gonzales, and that he borrowed the truck because his truck had two flat tires and he needed to get to work. Liera also told Officer Figueroa that he was an agricultural field worker in Calipatria, California, and was on his way to work.
At 10:45 a.m., Officer Figueroa interrogated material witnesses Le Chen and Wu Chen. Neither identified Liera as part of a scheme to bring Le Chen, Wu Chen, or any other aliens into the United States.
At 1:30 p.m., Officer Figueroa discovered that the video recording equipment used in the first set of interrogations malfunctioned. Liera, Le Chen, and Wu Chen’s interrogations were recorded without sound because of a battery problem. Officer Figueroa then contacted the United States Attorney’s Office. An Assistant United States Attorney gave Officer Figueroa the “green light” to interrogate Liera, Le Chen, and Wu Chen a second time.
At 2:57 p.m., more than ten hours after Liera’s arrest, Officer Figueroa interrogated Liera for a second time. During the second interrogation, Officer Figueroa asked Liera questions regarding the cell phone found during Liera’s arrest. These questions were not asked during the first interrogation. In particular, Officer Figueroa asked Liera if the phone was his and if he was able to access the phone’s electronic information using an access code. Liera answered “yes,” and entered the phone’s access code. Officer Figueroa reviewed the log of received, missed, and outgoing calls and learned that Liera’s phone had received three calls from a phone number stored in the phone’s internal memory under the name “Polios.” In Spanish slang, “Polios” (or “chickens”) refers to people who are illegally smuggled into the United States. During the interrogation, Liera confirmed that the three calls occurred on February 14 and 15, 2007. Liera also acknowledged that one meaning for “Polios” was “smuggled aliens.” Liera, however, claimed that the “Polios” entry in his cell phone referred to a friend of his who sold chickens. In closing argument, the government referred to the “Polios” entry in Liera’s cell phone as a “smoking gun.”
The chambers of Magistrate Judge Peter Lewis are located at the United States Courthouse in El Centro, California, about fifteen miles from the Calexico West Port of Entry where Liera was arrested. Because Officer Figueroa interrogated Liera for a second time, Liera was not arraigned during Magistrate Judge Peter Lewis’s 3:00 p.m. calendar call. Instead, Liera was arraigned at 10:48 a.m. on February 16, 2007, more than thirty hours after his arrest. 4
*1241 Before trial, Liera moved to suppress the statements he made during the second interrogation. The district court denied his motion. In particular, the district court noted that “the delay that led up to the second interrogation ... was justified by the need to get recorded statements from both [Liera] and the material witnesses” and that the delay was “necessary given the failure of the [recording] equipment.”
After a two-day jury trial, Liera was convicted of two counts of bringing aliens into the United States for financial gain and aiding and abetting, in violation of 8 U.S.C. § 1324(a)(2)(B)(ii) and 18 U.S.C. § 2. Liera was also convicted of two counts of bringing aliens into the United States without presentation, in violation of 8 U.S.C. § 1324(a)(2)(B)(iii). The district court sentenced Liera to thirty-six months concurrent imprisonment for each of the two financial gain and aiding and abetting counts, and twenty-seven months concurrent imprisonment for each of the two failure to present counts. All four sentences were to run concurrently.
This timely appeal followed.
ii. The District Court’s Failure To Suppress Liera’s Incriminating Statements Made During His Second Interrogation
The primary issue here is whether the district court erred by not suppressing the incriminating statements Liera made to law enforcement officers during his second interrogation. Liera argues that any evidence obtained during his second interrogation must be suppressed because of an unnecessary or unreasonable delay under Federal Rule of Criminal Procedure 5(a), 18 U.S.C. § 3501(c), and the McNabb-Mallory Rule. We agree.
A. The McNabb-Mallory Rule, Federal Rule of Criminal Procedure 5(a), and 18 U.S.C. § 3501(c)
We first provide background information regarding the McNabb-Mallory Rule, Federal Rule of Criminal Procedure 5(a), and 18 U.S.C. § 3501(c).
McNabb v. United States,
In response to the Supreme Court’s rulings in McNabb and Mallory, Congress *1242 enacted 18 U.S.C. § 3501(c). Section 3501(c) states that “a confession made ... by ... a defendant ..., while ... under arrest ..., shall not be inadmissible solely because of delay in bringing such person before a magistrate judge ... if such confession is found by the trial judge to have been made voluntarily and ... within six hours [of arrest].” 18 U.S.C. § 3501(c). Section 3501(c) also provides that the six-hour “time limitation ... shall not apply in any case in which the delay in bringing [the defendant] before [a] magistrate judge ... beyond such six-hour period is found by the trial judge to be reasonable considering the means of transportation and the distance to be traveled to the nearest available such magistrate judge.” 18 U.S.C. § 3501(c).
On April 6, 2009, the Supreme Court reaffirmed the applicability of the
McNabb-Mallory
Rule in
Corley v. United States,
Here, it is undisputed that Liera’s second interrogation “occurred before presentment and beyond six hours.” Id. It is also undisputed that the delay was not a result of the distance needed to travel to the nearest magistrate, since the nearest available magistrate, Magistrate Judge Lewis, was located only fifteen miles away.
Accordingly, our analysis in this case turns on whether delaying Liera’s arraignment to conduct a second interrogation “was unreasonable or unnecessary under the McNabb-Mallory cases.” Id.
B. Unreasonable or Unnecessary Delay
“We review a district court’s finding that a pre-arraignment delay was reasonable for clear error.”
See United States v. Padilla-Mendoza,
We recently addressed what constitutes an “unreasonable or unnecessary delay” in
United States v. Garcia-Hernandez,
Here, however, unlike in
Garcia-Hernandez,
the delay in presenting Liera to a magistrate judge was not necessary to redress a “shortage of personnel necessary to process [Liera] and determine whether he should be criminally charged.”
Garcia-Hernandez,
The government could have arraigned Liera during Magistrate Judge Lewis’s 3:00 p.m. arraignment calendar at the El Centro United States Courthouse, if not earlier. At 1:30 p.m., Officer Figueroa discovered that the video recording equipment used during Liera’s first interrogation malfunctioned and did not record any audio. Rather than proceed with the arraignment at 3:00 p.m., the government conducted a second interrogation at 2:57 p.m., nearly eleven hours after Liera’s arrest. As a result, Liera was not arraigned until 10:48 a.m. the next day, over thirty hours after his arrest.
The purpose of the
McNabb-Mallory
Rule is not merely to “avoid all the evil implications of secret interrogation of persons accused of crime.”
McNabb v. United States,
*1244 Accordingly, we hold that the district court clearly erred by refusing to suppress statements Liera made during his second interrogation. 8
in. Harmless Error
The government argues that even if the district court erred in refusing to suppress the statements and evidence obtained during Liera’s second interrogation, the error was harmless. This argument fails.
An error is harmless if “it is more probable than not that the error did not materially affect the verdict.”
See United States v. Seschillie,
Here, the government, at trial, repeatedly relied upon the information gathered from the second interrogation. In particular, the government relied heavily on the data in the cell phone and Liera’s statements regarding the “Polios” cell phone entry. The government also referred to the “Polios” cell-phone entry as the “smoking gun” during closing argument. Indeed, the government’s reference to the information as a “smoking gun” strongly suggests that the improperly admitted evidence was significant.
Moreover, absent the cell phone entries and testimony regarding “Polios,” the evidence against Liera was not overwhelming. 9 There was no direct evidence to establish that Liera had knowledge that Le Chen and Wu Chen were in the engine compartment. Neither Le Chen nor Wu Chen identified Liera as a participant in the smuggling, and the government does not dispute that the pick-up truck did not belong to Liera, but instead belonged to his uncle’s neighbor.
The fact that Liera was the sole occupant and driver of the pick-up truck is insufficient to establish harmless error.
See United States v. Foster,
*1245
Because the government placed significant emphasis on the improperly admitted evidence, and because the evidence establishing Liera’s knowledge was limited to the fact that he was the sole occupant and driver of the truck, we find that the government has failed to establish that “it is more probable than not that the error did not materially affect the verdict.”
Seschillie,
iv. Liera’s Remaining Arguments
Liera also argues that: (1) the district court improperly admitted into evidence Le Chen’s hearsay testimony regarding what his mother told him it would cost to have a person smuggled into the United States; (2) the district court should have suppressed all of Liera’s statements to CBP Officer Figueroa because of non-compliance with
Miranda v. Arizona,
A. Le Chen’s Testimony Regarding What His Mother Told Him It Would Cost to Smuggle a Person into the United States
During Liera’s trial, Le Chen testified that while he was in China his mother told him what it would cost to have a person smuggled into the United States. The district court determined that Le Chen’s mother (the “declarant”) was a co-conspirator and that her statements to Le Chen were admissible as nonhearsay under Federal Rule of Evidence 801(d)(2)(E). 11 Liera argues that there was insufficient evidence to establish that Le Chen’s mother was involved in a conspiracy and that the testimony was therefore inadmissible. We agree.
Before an alleged eo-eonspirator’s statement can be admitted into evidence under Rule 801(d)(2)(E), the government must establish that the declarant (Le Chen’s mother) knowingly participated in a conspiracy.
See United States v. Castaneda,
Here, the only evidence offered by the government to establish that Le Chen’s mother was involved in a conspiracy are the hearsay statements the government sought to introduce regarding what Le Chen’s mother told Le Chen. During Li-era’s trial, Le Chen testified that his mother told him that a “middleman” was going to help smuggle Le Chen into the United States. In particular, Le Chen’s mother told Le Chen that they “would pay the same amount [their] neighbors paid before,” and that Le Chen would work to pay back the money once he arrived in the United States. Under Federal Rule of Evidence 801(d)(2), these statements are insufficient to establish that Le Chen’s mother was involved in a conspiracy.
12
See Castaneda,
Accordingly, we hold that the district court erred by admitting, under Rule 801(d)(2)(E), Le Chen’s hearsay testimony regarding what his mother told him it would cost to smuggle Le Chen into the United States.
B. Liera’s Miranda Waiver
Liera also argues that the district court should have suppressed all of his post-arrest statements for noncomplianee with
Miranda v. Arizona,
C. The District Court’s Jury Instructions
Finally, Liera argues that the district court’s jury instructions denied Liera his right to a jury finding on the “specific intent” element of the aiding and abetting charge. Because Liera did not raise an objection to the jury instructions at trial, we review for plain error.
United States v. Armstrong,
v. Conclusion
We hold that the district court erred by not suppressing statements Liera made *1247 during the second interrogation because law enforcement officers unnecessarily delayed presenting Liera to a magistrate for arraignment in violation of Rule 5(a), 18 U.S.C. § 3501(c), and the McNabb-Mallory Rule. The district court’s admission of the statements Liera made during the second interrogation was not harmless. We also hold that the district court erred by admitting into evidence Le Chen’s testimony regarding his mother’s statements concerning the cost of smuggling a person into the United States. We affirm the district court’s ruling on the Miranda waiver and the district court’s jury instructions. Liera’s convictions are vacated, and we remand for a new trial.
VACATED and REMANDED.
Notes
. Liera also argues that: (1) the district court improperly admitted into evidence Le Chen’s hearsay testimony regarding what his mother told him it would cost to have a person smuggled into the United States; (2) the district court should have suppressed all of Liera’s statements to CBP Officer Figueroa because of non-compliance with
Miranda v. Arizona,
. Le Chen and Wu Chen are citizens of the People's Republic of China. At the time of their arrest, neither Le Chen or Wu Chen had *1240 applied for or been granted permission to be present or reside in the United States.
. The record reflects that Liera was advised of and waived his Miranda rights during both interrogations.
. The following chart reflects the relevant dates and times:
*1241 Date Time Time Since Arrest Event
2-15-07 4:15 a.m. 0 hrs Customs and Border Protection Officers arrest Liera.
2-15-07 9:18 a.m. 5 hrs 3 min Officer Figueroa interrogates Liera for a first time.
2-15-07 10:45 a.m. 6.5 hrs Officer Figueroa interrogates Le Chen and Wu Chen.
2-15-07 1:30 p.m. 9 hrs 15 min Officer Figueroa discovers the video equipment malfunctioned and did not record audio.
2-15-07 2:57 p.m. 10 hrs 42 min Officer Figueroa interrogates Liera for a second time.
2-15-07 3:00 p.m. 10 hrs 45 min Magistrate Judge Lewis conducts an arraignment calendar at the El Centro United States Courthouse. Liera is not arraigned during the 3:00 p.m. calendar.
Liera is arraigned. 2-16-07 10:48 a.m. 30 hrs 33 min
. Under § 3501(e) a confession is defined as "any confession of guilt or any self incriminating statement made or given orally or in writing.” 18 U.S.C. § 3501(e) (emphasis added).
. We note, however, that a delay in presenting a defendant to a magistrate judge may be independently unreasonable regardless whether additional information is necessary for the government to determine whether to file criminal charges.
See, e.g., United States v. Alvarez-Sanchez,
. Although we do not believe that the video recorder malfunction justified delaying Li-era's arraignment to conduct a second (recorded) interrogation, we commend the government’s general practice of recording interrogations.
. There is, however, insufficient evidence in the record to determine whether, absent Li-era's statements, it was proper to admit into evidence the data entries contained in the cell phone. On remand, the district court should address this issue.
. The government also contends that the error was harmless because Liera repeated the statements he now claims should be suppressed while testifying at trial. This argument is unpersuasive. Absent the evidence regarding “Polios” obtained solely during the second interrogation, there is no guarantee that Liera would have testified.
. Additionally, the cases the government cites to support its harmless error argument are not persuasive because they apply a more stringent standard than the harmless error
*1245
standard we must apply here. For example, the government relies heavily upon
United States v. Schemenauer,
. Rule 801(d)(2)(E) provides that a statement is not hearsay if “the statement is offered against a party and is ... a statement by a co-conspirator of a party during the course and in furtherance of the conspiracy.” Rule 801(d)(2)(E) further provides that “[t]he contents of the statement shall be considered but are not alone sufficient to establish ... the existence of the conspiracy and the participation therein of the declarant and the party against whom the statement is offered.”
. The government argues that there is sufficient independent evidence to establish that Le Chen’s mother was a co-conspirator, because on one occasion Le Chen saw his mother speaking to a man he thought was the "middleman.” This argument fails. Le Chen testified that he never personally met or spoke to the “middleman” and that he was not present for the conversation between his mother and this man. Accordingly, it does not constitute sufficient independent evidence to establish that Le Chen's mother was involved in a conspiracy.
