Alvin C. Green (“Green”) appeals various procedural rulings by the district court. For the following reasons, we affirm in part and reverse in part.
FACTUAL AND PROCEDURAL BACKGROUND
From June through August 1999, pursuant to court authorization, law-enforcement agents intercepted telephone conversations occurring over two cellular phones used by Green. The intercepts graphically depicted Green’s drug trafficking and money laundеring activities. On January 27, 2000, two law enforcement officers, armed with a parole warrant, arrested Green. One of the officers conducted a warrant-less search of Green’s automobile and recovered a .357 caliber revolver. 1 On April 5, 2000, Green was indicted on the following charges: Count I, conspiracy to possess with the intent to distribute and to distribute cocaine and 50 grams or more of сocaine base in violation of 21 U.S.C. § 846; Count II, distribution of 50 grams or more of cocaine base, in violation of 21 U.S.C. § 841(a)(1); Counts IV and V, engaging in a monetary transaction using criminally derived property, in violation of 18 U.S.C. § 1957; Counts VI through IX, unlawful use of a communications facility, in violation of 18 U.S.C. § 843(b); and Count X, possession of a firearm by a convicted felon, in violation of 18 U.S.C. § 922(g)(1). The Government filed two su-perceding indictments which amended Counts I, II, and X to include, among other things, Green’s prior drug and felony convictions.
Both parties filed a number of pre-trial motions. Relevant to this appeal, the district court denied Green’s motion to suppress the warrantless search of his vehicle. The district court granted the Government’s motion to authenticate the intercepted wiretaps and to use the corresponding transcripts. 2 The сase proceeded to a jury trial. During the trial, the district court denied Green’s request to sequester Special Agent Mark Lusco (“Lusco”), and Task Force Agent Rudy Babin, (“Rabin,” collectively with Agent Lusco, “DEA agents”) from being present in the courtroom. The district court further denied Green’s request to prevent the DEA agents from serving as expert witnesses. Finally, the district court overruled Green’s objection calling fоr a mistrial based on comments made by the prosecutor in his rebuttal.
On April 19, 2001, the jury found Green guilty on all counts. Green was sentenced to life imprisonment on Counts I, II, and X, ten years on Counts IV and V, and eight years on Counts VI through IX, with all terms to be served concurrently. Green appeals the district court’s procedural rulings. Green also moves for a new trial claiming that the district court committed plain error by failing to sever Count X from the remaining counts of the indictment.
*378 DISCUSSION
I. Warrantless Search
Green contends that the district court erred by failing to suppress the firearm recovered during the warrantless search of his vehicle. When reviewing a district court’s ruling on a motion to suppress, we review questions of law
de novo
and factual findings for clear error.
See United States v. Vasquez,
The facts of Green’s arrest are as follows. Armed with a warrant based on a parole violation, two law enforcement officеrs, followed Green from a location to his residence. When the officers pulled into his driveway, Green was on his front door steps, around twenty-feet from his vehicle. After the officers parked their car, they announced who they were. After they identified Green, they summoned him back to the driveway and placed him on an adjacent automobile in a frisk-type position. Green was initially cooperative. However, when the officers advised Green that he was under arrest for a parole violation, Green broke away and ran. Green was quickly tackled and immediately handcuffed, approximately six to ten feet from his vehicle. As Green was lying on the ground, handcuffed, surrounded by the arresting officer and three other Baton Rouge city police officers called to the scene, another officer searched Green’s vehicle and recovered a .357 caliber revolver found protruding from beneath the driver’s seat.
The district court found that the case was governed by
New York v. Belton,
The Supreme Court developеd the doctrine of search incident to arrest in
Chi-mel.
The Supreme Court held that an officer making a lawful custodial arrest may search the person in custody and the “area ‘within his immediate control’ ” into which he might reach in order to obtain a weapon or to destroy evidence.
Although this Court has not addressed this issue, the decisions from other Circuits are instructive. The Sixth and D.C. Circuits do not apply
Belton
where the police come upon the arrestee outside of his vehicle.
See United States v. Strahan,
Relying on the Seventh Circuit’s reasoning, the Government asserts that Belton is applicable because the search of Green’s vehicle occurred shortly after Green exited his vehicle. Given the undisputed facts of this case regarding Green’s actions, we do not find the Seventh Circuit’s reasoning dispositive. The principle behind Belton and Chimel is to protect police officers and citizens who may be standing nearby from the actions of an arrestee who might gain access to a weapon or destructible evidence. In this case, the officers approached Green after he exited his vehicle and was at his front door steps, around twenty-five feet away from his vehicle. Although Green attempted to flee from the officers, the Government admits that at the time the search occurred, Green was handcuffed and lying face down on the ground surrounded by four police officers, approximately six to ten feet away from his vehicle. The record contains testimony from the officer who searched Green’s vehicle that, at the time of the search, Green was “pretty secure” and that he and the other officers did not fear that their life or safety was in danger. Because none of the concerns artiсulated in Chimel and Belton regarding law enforcement safety and the destruction of evidence are present in this case, the Government cannot justify the search of Green’s vehicle under Belton or Chimel. Accordingly, we conclude that the district court erred in denying Green’s motion to suppress the weapon obtained from his vehicle.
II. Authenticity of Intercepted Wire Communications
To establish authenticity, the Government must demonstrate: 1) the operator’s competency, 2) the fidelity of the recording equipment, 3) the absence of material alterations, and 4) the identification of relevant sounds or voices.
See United States v. Biggins,
Green asserts that the district court erred in finding that his intercepted *380 telephone recordings had been authenticated. Green maintains that the Government failed to demonstrate that the recordings were reliable. Specifically, Green asserts that Agent Lusco and Barry Stewart, the Government’s expert witnеsses, did not adequately demonstrate how the recording equipment worked, who worked it, what kind of training the operator had, whether the equipment was reliable, and when the recordings were made.
After reviewing the record, we are persuaded that the intercepted telephone recordings accurately reproduce the auditory experience. As one of the case agents overseeing the wiretap operation, expert witness Agent Lusco possessed knowledge of the reliability of the intercepted telephone recordings. Having met Green, Agent Lusco was also able to identify his voice. Although we acknowledge that Agent Lusco was unaware of the specific workings of the equipment and the operator’s competency, the record reflects that both he and Agent Rabin listened to each intercepted call and corroborated Green’s conversations with his actions on numerous occasions. Thus, we find that the district court did not abuse its discretion when it determined that the intercepted recordings were authenticated and admitted the corresponding transcripts into evidence.
III. Sequestration of the DEA Agents
Green contends that the district court erred in exempting both DEA agents, from sequestration pursuant to Rule 615 of the Federal Rules of Evidence. This Court reviews a district court’s compliance with Rule 615 for abuse of discretion, and we will reverse only if Green can demonstrate prejudice.
See United States v. Hickman,
During the trial, the Government argued that Rule 615 does not “set forth a limit to the number of case agents that may sit [at its] table.” The district court agreed and exemptеd the DEA agents from sequestration. As noted in
Hickman,
this Court has never decided whether the Government can designate more than one individual as its case agent, however we have permitted the exemption of more than one case agent from sequestration if their presence is essential to the presentation of the case.
See Hickman,
The Government asserts that the DEA agents’ presence was еssential to its ease given the nature of the investigation. The Government explains that because they are required to run all wiretap operations out of New Orleans, the DEA agents, who were located in Baton Rouge, had to split up their review of the intercepted recordings. Thus, the Government asserts that the presence of both agents was necessary because they were slated to testify regarding different intercepted telephone conversations. Upon review of the record, we are not persuaded that this division of responsibility necessarily rendered both DEA agents presence in the courtroom throughout the trial essential to the Government’s presentation of its case. The district court likewise does not offer any compelling rationale for why bоth DEA agents presence was essential to this case.
While we deem the presence of both DEA agents arguably unnecessary, nonetheless because Green has not identified *381 any specific prejudice he suffered because of the DEA agents presence, we decline to find that the district court committed reversible error in exempting them from sequestration.
IV. DEA Agents’ Testimony as Experts
Green contends that the district court erred in allowing the DEA agents to testify as expert witnesses in the areas of drug trafficking and money laundering. Green argues that the DEA agents’ testimony was biased and not impartial due to their involvement in the case. Because the basis for Green’s objection during trial is different from the theory he now raises on appeal, “plain error” is the standard of review.
See United States v. Jimenez,
Rule 702 of the Federal Rules of Evidence provides that a witness qualified as an expert by knowledge, skill, experience, training or education, may testify in the form of opinion or otherwise if technical or specialized knowledge will assist the jury. The Government asserts that Rule 702 doеs not prohibit a law enforcement officer, who has investigated the matter at issue, from testifying as an expert. We agree. Furthermore, we find that Green failed to demonstrate how the DEA agents’ expert testimony “seriously affected the fairness, integrity, or public reputation of the judicial proceeding.”
United States v. Longoria,
V. Prosecutorial Comments
Green asserts that the district court erred in denying his request for a mistrial. Green maintains that his due process rights were violated by the prosеcutor’s improper comments during his rebuttal closing argument regarding Green’s failure to testify. The Government counters that the prosecutor’s statements were made in response to Green’s counsel’s closing argument that the Government failed to turn over a portion of the intercepted telephone recordings to Green. Green’s argument is reviewed for plain error because his argument on appeal differs from the argument raised below.
See Jimenez,
The Fifth Amendment prohibits a prosecutor from commenting either directly or indirectly on a defendant’s failure to testify.
See United States v. Mackay,
... only those actions which the spin can be placed, to throw a light of dishonesty, criminality, or illegality, was brought forth to you by the Government. You heard the agents testify of the thousands and thousands and thousands of telephone calls, and that the agents made the decision, using the words, which ones were pertinent and non-pertinent. The non-pertinent calls, those judged non-pertinent by the Government, were never recorded ... Don’t you wonder what those calls were about? Wouldn’t you love to know what those calls said, as well? Not just the ones that they could give the spin, the twist, the sinister meaning to.
We’ll never know that because they not there. They tried to explain their way out of that the other day on the stand by saying, oh, no, we recorded the non-pertinent calls, too. No, they didn’t. No, that’s not right. They recorded an initial portion, and when they could tell that call wasn’t going where they wanted it to go, for their spin and their twist, click goes the machine.
In his rebuttal, the prosecutor resрonded by making the following statement regarding the Government’s duty to minimize calls:
Now, Special Agent Lusko said there were about 2,000 calls. We would still be here playing all of those calls. You heard Special Agent Lusko say that he provided every one of those calls to Mr. Bourland. Every one of them ...
... by the way, conversation number 50, it will say minimize. What does that mean? Well, it means that, yes, that conversation wаs intercepted, we recorded it, but those were among hundreds of conversations provided to the defendant, which he didn’t play.
Green argues that his counsel’s statements referenced unrecorded telephone calls, not those recorded by the Government, whether deemed pertinent or non-pertinent. Green asserts that it would have been impossible, even if desired, for him to put forth telephonе conversations that were not recorded and do not exist. After reviewing the prosecutor’s comments in the context in which they were stated, we conclude that the comments did not reference Green’s silence.
See United States v. Virgern-Moreno,
VI. Misjoinder of Count X
Acknowledging that his counsel failed to move to sever Count X, possession оf a firearm by a convicted felon, from the remaining counts in the indictment, Green argues that this misjoinder constituted plain error. Green argues that Count X arose at a completely different time from the period covered by the other counts at trial. As a result, Green avers that the joinder of Count X “cloud[ed] the fairness of the trier of fact as to the character and propensities.” We disаgree. The record contains abundant evidence of
*383
Green’s guilt of the drug trafficking and money laundering related counts. Furthermore, if there was plain error, it did not seriously affect Green’s substantial rights or the “fairness, integrity, or public reputation of the judicial proceeding.”
Longoria,
CONCLUSION
For the foregoing reasons, we REVERSE the denial of Green’s suppression motion, VACATE the conviction as to Count X, and REMAND for further proceedings consistent with this opinion. The remaining convictions are AFFIRMED.
Notes
. The details of the search are discussed infra.
. Of no significant relevance to this appeal. Green’s motion to strike his prior felony and drug convictions from the two superseding indictments was granted.
. The Sixth Circuit also applies.Belton where the police initiates contact prior to the defendant's exit of the automobile.
See United States v. Hudgins,
. Rule 615 does not authorize the exclusion of (1) a party who is a natural person, or (2) an officer or employee of a party which is not a natural person designated as its representative by its attorney, or (3) a person whose presence is shown by a party to be essential to the presentation of his cause.
. The record reflects that Green objected to the DEA agents serving as expert witnesses based on their lack of education and training in the areas of narcotics trafficking and money laundering.
. At trial, Green’s counsel called for a mistrial arguing that the prosecutor’s statement im-permissibly shifted the burden of proof to Green. Green's counsel asserted that Green "had no burden to put forth any evidence whatsoever.”
