FLETCHER, Circuit Judge:
The United States appeals the district court’s order granting defendant, Daniel Kellington, a new trial. Because we find no abuse of discretion in the district court’s decision, we affirm and remand the case for re-trial.
I. Factual Background
A. Pre-Verdict Proceedings
Daniel Kellington is an experienced civil attorney from Medford, Oregon specializing in personal injury law and trusts and estates. In 1996 he was tried and convicted of obstruction of justice under 18 U.S.C. § 1512(b)(2)(B), and conspiracy to obstruct justice under 18 U.S.C. § 371, for conduct arising from his representation of a client over the course of a weekend during which the client was apprehended for being a convicted drug trafficker and longstanding federal fugitive operating under an assumed name. The following facts were adduced at trial.
On a Saturday afternoon in March 1994, Kellington received a call at his office from a United States Marshal indicating that one of his business clients, “Richard Parker,” had been positively identified as a fugitive named Peter MacFarlane who was wanted on a warrant issued in the District of Vermont, and that MacFarlane was in jail and wished to speak with him.2 Until [1088]*1088that day, Kellington knew 1 MacFarlane only as “Richard Parker” and had represented him over a period of six months in 1993 in a few matters connected with his business, Metalhead Boat Works.3 Kell-ington told MacFarlane over the phone that he did not do criminal work, but MacFarlane asked to see him anyway regarding “some matters related to a boat business,” and Kellington agreed to come to the jail.
Once at the jail, MacFarlane confirmed that “Parker” was an alias, that he owed time for a prior drug conviction back East, and that he planned to go back to face the charges. He then asked Kellington to pass instructions along to one of his employees, Norm Young, whom he-could not contact directly because the marshals would not . allow him to speak with anyone but his attorney. Kellington agreed, and MacFarlane wrote out a list of personal property he wanted Young to remove from his house and hold (including stereo equipment, files, a black attache .case, money stuffed between the mattresses of his bed, a laptop computer, electronic organizers, and a boat). MacFarlane also wrote out instructions to Young to retrieve and destroy an envelope hidden in á chair in the bedroom and to meet with MacFarlane on Monday to discuss running Metalhead Boat Works in his absence.4 Kellington read the list, discussed the priority of each task with MacFarlane, and entered numbers on the list reflecting MacFarlane’s sense ' of urgency. The meeting lasted about ten minutes.
Kellington then took the list back to his office, called Young right away, and began reading him the instructions. " When Young asked how he should destroy the envelope, Kellington suggested that he could burn it. Obviously concerned by the instructions in" the list, Young asked why “Mr. Parker” was not making the call himself. ' Kellington simply responded that “Parker” was in jail, -without mentioning either why he had been arrested or that “Parker” was actually Peter MacFarlane. At the end of the conversation, Young asked if he could get into trouble for executing the listed instructions and Kelling-ton said no, but that he should certainly stop if he ran into the police or “somebody bigger than you.” Reporter’s Transcript (“RT”), Vol. II at 218.
Young went to MacFarlane’s house that afternoon and began removing the listed items and loading them into a truck. After finding the envelope, he took it to the wood stove in the house and began burning the enclosed papers until he came across-a New York State driver’s license with MacFarlane’s picture' but the name “Branon.” The name matched a name Young had seen on some of the “official looking”'papers he had already burned and he decided to stop burning. He continued to load the other listed property, -however, and drove home, pocketing the driver’s license and the remaining identification papers for “Branon.”
After showing the driver’s license to a friend who also knew “Parker,” discovering over $20,000 in cash in one of the bags he removed, and talking with his wife over the phone (who was the bookkeeper for “Parker’s” business), Young decided to drive back to MacFarlane’s house and return the property. When he came up the driveway he was accosted by federal marshals who had returned to the property to execute a search warrant. Young immediately handed over the “Branon” documents and told the marshals that he had been instructed by Kellington to remove the property from “Parker’s” house and to destroy the contents of the envelope.
The next day, a Sunday, federal agents came to Young’s house, recovered some of [1089]*1089the cash Young had withheld, and arranged to have Young initiate a tape-recorded call to Kellington to confirm that Kellington had given him the list. Two calls were made during which Young informed Kellington that he found fake I.D.’s in the envelope he destroyed and that there were thousands of dollars in one of the bags he removed. Young falsely told Kellington that the I.D.’s were destroyed, and when Kellington asked whether he had “heard from anybody about anything,” Young said no. Kellington advised Young that they should make an inventory, count the money, and that he would take possession of the small items such as the cash, the computer, and the electronic organizers.
At the prompting of federal agents, Young also asked Kellington whether they should go to the authorities and Kellington replied, “Well, I don’t think you have to do that....” Govt. Trial Ex. 27 at 2. Instead, Kellington again assured Young that he was not in trouble and agreed to come to Young’s house to pick up his client’s property that night. He added that there was no indication that the money was tainted and that he had a duty to protect any of his client’s untainted assets:
I have a duty to my client to protect his assets that, that they can’t get and when they.... If they, if somebody uh, come and, comes and says hey we’re attaching that money because it’s ill gotteri gains or something.... Well then I have to turn it over to them, but in the meantime it’s his money, and it’s his money and he may need to defend uh, you know pay a lawyer.
Id. at 5. As Kellington left Young’s house with the small items and cash that Young gave him, federal agents detained him.
Kellington and MacFarlane were tried together. Each was charged with obstructing justice by “knowingly ... engaging] in misleading conduct toward another person, with intent to alter, destroy, mutilate, or conceal an object with intent to impair the object’s integrity or availability for use in an official proceeding.” 18 U.S.C. § 1512(b)(2)(B). Another count charged the two with conspiring to obstruct justice.
At trial, Kellington testified that he did not know or even suspect that the envelope contained potential evidence when he conveyed MacFarlane’s request to Young, and that he did not learn anything about the envelope’s contents until Young called him on Sunday.5 As for the other items on the list, Kellington said that he simply assumed MacFarlane wanted his employee to secure his property and business assets since he would be away for a long time. When asked on cross-examination why he wasn’t initially suspicious of MacFarlane’s request to remove and destroy property— why he didn’t ask MacFarlane more questions before passing the instructions on to Young — Kellington repeatedly conceded that in hindsight, he should have been more inquiring but that, at the time, he thought he was only helping MacFarlane deal with business matters and “none of the flags were up”:
[W]hen I went to the jail and talked with — with Richard, he was the same friendly person that he had been. He was going to go back and pay his debt. He wasn’t going to fight it. Just too trusting, I’m sure. Looking back, I certainly would be more suspicious, but I wasn’t suspicious at the time.
RT III 153. When asked on direct why he did not tell Young the nature of MacFar-lane’s offense (or that “Parker” was just an alias), Kellington replied that, as a matter of course, he does not disclose to third parties any information or problems he learns in confidence from his clients.
At trial, the court allowed Kellington to introduce the testimony of an expert on [1090]*1090legal ethics, Peter Jarvis. He testified (a) that the duty of-loyalty requires a lawyer to do what the client requests unless the lawyer knows the conduct to be illegal, (b) that because of the duty of loyalty, lawyers “tend to very strongly believe [their] clients,” and, at least in the civil bar, lawyers “tend not, by and large, to be immediately suspicious of [clients] if they ask us to do things,” RT II 180(c) that it would not be surprising for a civil lawyer to fail to immediately recognize a request to remove and destroy personal property as potentially illegal,6 (d) that Kellington’s cpnduct on Sunday was “completely covered in [Oregon State] Ethics Opinion 1991-Í05 ... [because] [i]f you come into possession of evidence that you know to be contraband or the instrurnentality [or] fruit of a crime ... then you may retain it for a reasonable period of time for purposes of examining and testing,” RT II 196, and (e) that while Kellington did not behave unreasonably given his specific experience and background, in hindsight, a prudent lawyer would have asked additional questions of MacFárlane on Saturday to determine whether he was asking to have potential evidence destroyed or removed.
The government presented its own expert, Sylvia1' Stevens, assistant general counsel for the Oregon State Bar. She agreed with Jarvis that “lawyers are entitled to take their clients somewhat at face value,” that “the client is clearly the ... boss in the relationship,” and that “you have to be pretty certain that your client is going to do something illegal' or fraudulent before you are compelled to withdraw from the representation and not assist.” RT II 204-05. However, she added that
competent representation of a client requires at least a minimal investigation of what it is you’re being asked to do for your client. Not only to ensure that you can give the client competent advice about what the consequences of that requested act might be, but also because if the lawyer is being asked — as Mr. Kell-ington was here — to take some action on his own ... I think a prudent lawyer would ensure what the lawyer is doing is not going to expose the lawyer to any liability as well.
RT II 205. Thus while testifying that a lawyer would not have to distrust a client merely because he discovered that his client had been operating under an alias, Stevens opined that a request to destroy an envelope when the client is going to be in prison for a long time should “trigger inquiry.” RT II 209.
Despite allowing this testimony, the court precluded the lawyers from making any “ethics type of argument” in their closings,7 and immediately after the expert testimony, the court instructed the-jury that the expert testimony was simply “background” information: .
[T]he last witnesses have given their opinions as experts on a number of matters. To the — and I’ve allowed that to provide you with the background that I think may be appropriate to some of the decisions that you may have to make in this case. However, the law in this case comes from me. And •I’ll give you the [1091]*1091law later. The law doesn’t come from the witnesses. The evidence from which you decide the facts comes from the witnesses. And so I’ll provide you with definitive statements on the law before you deliberate.
RT II 210.
After the close of evidence, the court denied the government’s request for a Jewell instruction, see United States v. Jewell, 532 F.2d 697 (9th Cir.1976), finding that the government failed to submit sufficient evidence that Kellington “purposefully contrived to avoid learning all of the facts in order to have a defense in the event of subsequent prosecution.” RT III 196-97. According to the district court, “[t]he Jewell instruction is properly given only when a defendant claims a lack of guilty knowledge and the proof at trial supports an inference of deliberate ignorance. It is not enough that a defendant was mistaken, recklessly disregarded the truth, or negligently failed to inquire.” RT III 196-97. The government therefore had to prove that Kellington knew he was participating in the concealment or destruction of objects useful to an official proceeding.
B. Post-Verdict Proceedings
After the jury returned a verdict of guilty, Kellington moved for judgment of acquittal under Federal Rule of Criminal Procedure 29, and for a new trial under Rule 33. The district court granted the motion for judgment of acquittal, noting it was the first time he had done so in his 23 years as a judge and reasoning that the government did not produce sufficient evidence that Kellington intended to make evidence unavailable for an official proceeding.8 The court then denied Kelling-ton’s motion for new trial as moot without indicating, as Rule 29(d) requires, how the court would decide the motion if the acquittal were to be reversed on appeal.9
The government appealed the district court’s entry of judgment of acquittal and a divided panel of this court reversed in an unpublished memorandum disposition. United States v. Kellington, 139 F.3d 909, 1998 WL 75695, at *1-3 (9th Cir.1998) (Kellington I). Viewing the evidence in the light most favorable to the government, the court reasoned:
Any attorney, no matter what the nature of his practice, would know better under these particular circumstances than to destroy documents and objects of a kind that might be evidentiary materials.... At the very least, an honest and unwitting attorney would have wanted to know what he was causing to be destroyed for his fugitive client before putting the torch to it. Burning envelopes with contents unknown is not taught in American law schools....
It strains credibility well past the breaking point to assert that Kellington did [1092]*1092not know and appreciate the connection between the immediate burning of documents and the fugitive federal court proceeding on Monday. Substantial and compelling evidence wholly undercut Kellington’s contentions both in the trial court and on appeal.
Id. at *1-3.10 The court’s mandate stated: “REVERSED AND REMANDED FOR ENTRY OF JUDGMENT AND FOR SENTENCING.” Id. at *3.
In Kellington I, neither party briefed or otherwise raised the district court’s failure to enter a conditional ruling on the motion for new trial. Thus on remand, when Kell-ington'renewed his motion for new trial, the district court ordered the motion reinstated and granted it after briefing and an extended oral argument. The court found that it committed plain error at trial by (1) instructing the jury that the expert testimony was merely “background” information rather than evidence going to Kelling-ton’s intent, and (2) expressly prohibiting defense counsel from arguing in closing that Kellington’s ethical obligations to his client negated his criminal intent. As the court concluded:
After careful deliberation, including close scrutiny of the record, weighing the evidence, evaluating the credibility of the witnesses, and for the reasons discussed above, I believe taken together, the evidence convicting defendant Kellington of a violation of 18 U.S.C. § 1512(b)(2)(B) in conjunction with the • court’s restrictions on closing argument preponderates sufficiently heavily against the verdict that a serious miscarriage of justice may have occurred.
After the district court denied the government’s motion for reconsideration, this appeal followed. The government now contends that the district court violated our mandate in Kellington I and Rule 29 by reinstating the motion for new trial. On the merits, the government argues that the district court abused its discretion in granting the motion. We have jurisdiction over this appeal .pursuant to 18 U.S.C. § 3731, and we affirm the district court’s decision to grant a new trial.
II. AuthoRity to Reinstate the Motion for New Trial
A. The Rule of Mandate
As a question of law, we review de novo a district court’s compliance with the mandate of an appellate court. See McBride v. PLM Int’l, Inc., 179 F.3d 737, 741 (9th Cir.1999); United States v. Moore, 131 F.3d 595, 598 (6th Cir.1997).
In order to determine whether the district court had jurisdiction to reinstate Kellington’s motion for new trial, we must first apply the rule of mandate. The government contends that the strict terms of our mandate in Kellington I (“reversed and remanded for entry of judgment and for sentencing”) prohibited the district court from considering the motion for new trial. Kellington, on the other hand, contends that the district court had discretion to consider the motion, despite the terms of the mandate, since the prior appeal addressed only the judgment of acquittal and this court was not then aware of the mooted new trial motion.
According to the rule of mandate, although lower courts are obliged to execute the terms of a mandate, they are free as to “anything not foreclosed by the man[1093]*1093date,” Herrington v. County of Sonoma, 12 F.3d 901, 904 (9th Cir.1993) (citation omitted), and, under certain circumstances, “[a]n order issued after remand may deviate from the mandate ... if it is not counter to the spirit of the circuit court’s decision....” Lindy Pen Co. v. Bic Pen Corp., 982 F.2d 1400, 1404 (9th Cir.) (citing King Instrument Corp. v. Otari Corp., 814 F.2d 1560, 1563 (1987)), cert. denied, 510 U.S. 815, 114 S.Ct. 64 (1993).
In the seminal case on the subject, In re Sanford Fork & Tool Co., the Supreme Court emphasized that, in addition to the mandate itself, “[t]he opinion by this court at the time of rendering its decree may be consulted to ascertain what was intended by its mandate.... ” 160 U.S. 247, 256, 16 S.Ct. 291, 40 L.Ed. 414 (1895). The Court added that it is important, in determining “what was heard and decided” by the appellate court, to bear in mind the “settled practice” of courts with respect to the applicable substantive law. 160 U.S. at 256, 16 S.Ct. 291. Thus, in construing a mandate, the lower court may consider the opinion the mandate purports to enforce as well as the procedural posture and substantive law from which it arises. As the talismanic language from Sanford Fork makes clear, the ultimate task is to distinguish matters that have been decided on appeal, and are therefore beyond the jurisdiction of the lower court, from matters that have not:
When a case has once been decided by this court on appeal, and remanded to the circuit court, whatever was before this court, and disposed of by its decree, is considered as finally settled. The circuit court is bound by the decree as the law of the case, and must carry it into execution according to the mandate. That court cannot vary it, or examine it for any other purpose than execution; or give any other or further relief; or review it, even for apparent error, upon any matter decided on appeal; or in-termeddle with it, further than to settle so much as has been remanded.
Id. at 255, 16 S.Ct. 291 (emphasis added) (lower court free to grant plaintiff leave to amend on remand where case was “left open by the opinion and mandate of this court, and by the general rules of practice in equity”).
In most cases, enforcing the mandate is uncontroversial because its terms are plain and they square both with the underlying opinion and the procedural history of the case. Under these circumstances, the lower court must execute the mandate without hesitation. However, as the First Circuit has observed, “[o]n remand, courts are often confronted with issues that were never considered by the remanding court.” Biggins v. Hazen Paper Co., 111 F.3d 205, 209 (1st Cir.), cert. denied, 522 U.S. 952, 118 S.Ct. 373, 139 L.Ed.2d 290 (1997). In such cases, “[bjroadly speaking, mandates require respect for what the higher court decided, not for what it did not decide.” Id. (citing Rogers v. Hill, 289 U.S. 582, 587-88, 53 S.Ct. 731, 77 L.Ed. 1385 (1933); Sierra Club v. Penfold, 857 F.2d 1307, 1311-12 (9th Cir.1988); Alter Fin. Corp. v. Citizens & Southern Int’l Bank, 817 F.2d 349 (5th Cir.1987)).
In Sprague v. Ticonic National Bank, for instance, the lower court refused to consider the prevailing party’s petition for attorney fees and costs on the ground that the mandate simply directed the court “to execute its original final decree,” and therefore deprived the court of jurisdiction to entertain the petition. 307 U.S. 161, 164, 59 S.Ct. 777, 83 L.Ed. 1184 (1939). Although cognizant of the “indisputable” proposition that a lower court must “carry the mandate of the upper court into execution,” the Supreme Court stated that this
leaves us still to consider whether the immediate issue now in controversy was disposed of in the main litigation and therefore foreclosed by the mandate. While a mandate is controlling as to the matters within its compass, on remand a lower court is free as to other issues. Certainly the claim for “as between solicitor and client” costs was not directly [1094]*1094in issue in the original proceedings by Sprague. It was neither before the Circuit Court of Appeals nor before ■ this Court. Its disposition, therefore, by the mandate of either Court could be implied only if a claim for such costs was necessarily implied in the claim in the original suit, and its failure to ask for such costs an implied waiver. These implications are repelled by the basis on which such costs are granted.... We therefore hold that the issue in the instant case is sufficiently different ... that it was impliedly covered neither by the original decree nor by the mandates, and that neither constituted a bar to the disposal of the petition below on its merits.
307 U.S. at 168-69, 59 S.Ct. 777 (citing Ex parte Century Indemnity Co., 305 U.S. 354, 59 S.Ct. 239, 83 L.Ed. 216 (1938); Kansas City Southern Ry. v. Guardian Trust Co., 281 U.S. 1, 50 S.Ct. 194, 74 L.Ed. 659 (1930); Sanford Fork, 160 U.S. 247, 16 S.Ct. 291, 40 L.Ed. 414 (1895)); see also Quern v. Jordan, 440 U.S. 332, 347 n. 18, 99 S.Ct. 1139, 59 L.Ed.2d 358 (1979) (looking to whether post-mandate conduct of lower court was consistent “with either the spirit or the express terms of our decision”).
Rule of mandate cases in this circuit are in accord. As we noted in Nguyen v. United States, “although the mandate of an appellate court forecloses the lower court from reconsidering matters determined in the appellate court, it ‘leaves to the district court any issue not expressly or impliedly disposed of on appeal.’ ” 792 F.2d 1500, 1502 (9th Cir.1986) (quoting Stevens v. F/V Bonnie Doon, 731 F.2d 1433, 1435 (9th Cir.1984), and holding that mandate ordering entry of summary judgment in favor of defendant required district court to enter summary judgment but did not preclude court from allowing plaintiff to amend complaint immediately thereafter).11
Here, the motion for new trial was not before the Kellington I court. Only the judgment of acquittal was appealed and addressed by our decision. Moreover, there can be no implication that, in reversing the judgment of acquittal, the Kellington I court implicitly disposed of the merits of the motion for new trial. See Sprague, 307 U.S. at 168, 59 S.Ct. 777. As with any judgment for acquittal, the Kellington I court reviewed the sufficiency of the evidence in the light most favorable to the government. See United States v. Alston, 974 F.2d 1206, 1210 (9th Cir.1992) (“A judgment of acquittal is improper if, viewing the evidence in the light most favorable to the government, a rational trier of fact could have found the defendant guilty beyond a reasonable doubt. In reviewing the district court’s decision, we apply the same standard.”) (citations omitted). A motion for new trial, by contrast, [1095]*1095is reviewed for abuse of discretion on appeal, and “[a] district court’s power to grant a motion for new trial is much broader than its power to grant a motion for judgment of acquittal. The district court need not view the evidence in the light most favorable to the verdict; it may weigh the evidence and in so doing evaluate for itself the credibility of the witnesses.” Id. at 1211 (citations and internal quotation marks omitted); see also Fed. R.Crim.P. 33 (“On a defendant’s motion, the court may grant a new trial to that defendant if the interests of justice so require”) (emphasis added). Finally, nothing in Kellington I speaks to the district court’s reasons for ordering a new trial on remand (improperly instructing the jury that the ethics experts’ testimony was merely background and disallowing argument on that testimony in closing).
Thus, considering our directive in Kellington I in light of the decision it purports to enforce as well as the underlying substantive law and procedural history, we conclude that the district court did not exceed its authority on remand by reinstating the motion for new trial.12
B. Rule 29(d)
The government also contends that the purposes of Rule 29(d) will be thwarted if a district court is permitted to consider a motion for new trial on remand where it initially failed to enter a conditional ruling. We disagree. Rule 29(d) was added to the Federal Rules of Crimi-. nal Procedure in 1986. See Criminal Law [1096]*1096and Procedure Technical Amendments Act of 1986, Pub.L. 99-646 § 54, 100 Stat. 3592, 3607. According to its terms, a district court errs if it fails to make a conditional ruling on a motion for new trial when it grants a judgment of acquittal. Fed.R.Crim.P. 29(d) (“If a motion for judgment of acquittal after verdict of guilty under this Rule is granted, the court shall also determine whether any motion for a new trial should be granted if the judgment of acquittal is thereafter vacated or reversed, specifying the grounds for such determination.”) (emphasis added). The purpose of requiring a conditional ruling is judicial economy: “Rather than have the judgment of acquittal and the grant of a new trial be reviewed separately by the appeals court, [Rule 29(d)] requires the district judge to make a conditional ruling concerning a new trial so that the appeals court can review these decisions in a single consolidated appeal.” Richard Sauber & Michael Waldman, Unlimited Power: Rule 29(a) and the Unreviewability of Directed Judgments of Acquittal, 44 Am. U.L.Rev. 433, 437-38 (1994).
Compliance with Rule 29(d) is now well established in federal criminal practice. In the vast majority of cases where defendants file motions for acquittal along with timely motions for new trial, district courts know, or are promptly reminded by the parties, to enter conditional rulings on the latter. We deal here with the rare instance where, although the defendant timely moved for a new trial, the district court failed to enter a conditional ruling as the Rule requires, and neither party raised the error before the district court or on appeal of the judgment of acquittal.13 The government urges that the defendant should be charged with the district court’s error. However, the government raises the Rule 29(d) issue for the first time in this appeal, after the district court carefully considered the merits of the motion, heard' argument from both parties, and determined that a serious miscarriage of justice may have occurred at Kellington’s trial. See United States v. Ghanayem, 845 F.Supp. 565, 565-66 (N.D.Ill.1994) (upon deciding to appeal judgment of acquittal, government moved for conditional ruling on previously mooted motion for new trial), rev’d on other grounds, 48 F.3d 1438 (7th Cir.1995). Under these special circumstances, we decline to hold that the defendant, on pain of forfeiting his right to consideration of the merits of his motion, was obliged to raise the district court’s initial failure to enter a conditional ruling.14
[1097]*1097III. The Motion for New Trial
A. Standard of Review
As we noted above, “[a] district court’s power to grant a motion for a new trial is much broader than its power to grant a motion for judgment of acquittal.” Alston, 974 F.2d at 1211 (citation omitted). The court is not obliged to view the evidence in the light most favorable to the verdict, and it is free to weigh the evidence and evaluate for itself the credibility of the witnesses. Id. Given the procedural posture of this case, the scope of the district court’s discretion bears elaboration:
“If the court concludes that, despite the abstract sufficiency of the evidence to sustain the verdict, the evidence preponderates sufficiently heavily against the verdict that a serious miscarriage of justice may have occurred, it may set aside the verdict, grant a new trial, and submit the issues for determination by another jury.” United States v. Lincoln, 630 F.2d 1318, 1319 (8th Cir.1980). Our role is limited to determining whether the district court “clear[ly] and manifest[ly]” abused its discretion. Id. The decision “is within the sound discretion of the district court, and the appellant carries a significant burden to show” an abuse of discretion. United States v. Steel, 759 F.2d 706, 713 (9th Cir.1985).
Appellate deference makes sense. Circuit judges, reading the dry pages of the record, do not experience the tenor of the testimony at trial. The balance of proof is often close and may hinge on personal evaluations of witness demean- or. And, because an order directing a new trial leaves the final decision in the hands of the jury, it does not usurp the jury’s function in the way a judgment of acquittal does. In fact, until 1984 grants of new trial motions were not appeal-able. Although they now are, a court of appeals will only rarely reverse a district judge’s grant of a defendant’s motion for a new trial, and then only in egregious cases.
Id. at 1211-12 (emphasis added) (citations omitted).15
[1098]*1098B. Merits
The obstruction of justice charge against Kellington has three elements: first, that Kellington “knowingly engaged in misleading conduct toward”' Norm Young, second, that he did so “with intent to alter, destroy, mutilate, or conceal an object,” and third, that he intended “to impair the object’s integrity or availability for use in an official proceeding.” 18 U.S.C. § 1512(b)(2)(B). This is a specific intent crime, so in the absence of an instruction on deliberate ignorance, the government was obliged to establish that Kellington knew the property Young removed/destroyed was useful to -an official proceeding and that Kellington intended to impair the availability of those objects for use in the proceeding. Moreover, as 18 U.S.C. § 1515(c) provides, and as the. jury was instructed, the chapter covering, obstruction of justice “does not prohibit or punish the providing of lawful, bona fide, legal representation services in connection with or anticipation of an official proceeding.” Thus § 1515(c) provides a complete defense to obstruction of justice.
It is well settled that in the prosecution of a lawyer for conduct stemming from his or her representation of a client, expert testimony on the lawyer’s ethical obligations is relevant to establish the lawyer’s intent and state of mind. See, e.g., United States v. Cavin, 39 F.3d 1299, 1309 (5th Cir.1994) (reversing conviction of attorney for fraud where district court excluded testimony of expert on professional responsibility; “[A]'lawyer accused of participating in his client’s fraud is entitled to present evidence of his professional, including ethical,' responsibilities, and the manner in which they influenced him. Exclusion of such evidence prevents the lawyer from effectively presenting his defense.”) (citation omitted); United States v. Kelly, 888 F.2d 732, 743 (1989) (reversible error to exclude testimony regarding attorney’s understanding of his professional obligations where attorney was charged and convicted of-conspiracy to possess and counseling possession of cocaine in connection with-representation of drug traffickers; “[T]he excluded testimony was very relevant to [the attorney’s] intent and state of mind regarding his dealings with both [his client and an informant]. Kelly’s duty of attorney-client confidentiality, combined with his duty to counsel his clients against committing further crimes, forms the basis for his primary defense: that he acted not with criminal intent but within the legitimate bounds of legal representation. The proffered testimony was thus crucial to [1099]*1099Kelly’s defense, and its exclusion substantially hindered him from articulating this defense.”).16
In this case, the defense relied heavily on the ethics testimony for two primary purposes. In order to prove the first element of the offense (knowingly misleading another), the government pointed to Kell-ington’s initial call to Young and his failure to tell Young that “Parker” was an alias and that MacFarlane was a convicted drug trafficker and federal fugitive. In response, the defense used Jarvis to establish that any information Kellington omitted about MacFarlane in his initial call with Young was covered by his duty of confidentiality to MacFarlane. (Recall that Kellington testified he made a habit of not disclosing his clients’ problems to third parties.) If Kellington was obliged not to reveal his client’s secrets, which in Oregon includes any information “the disclosure of which would be embarrassing or ... detrimental to the client,” Or.Code of Prof. Resp. Disciplinary Rule 4-101(A),17 then he was simply obeying his ethical obligations when he told Young only so much as was necessary to have him execute the list of instructions.
Second, because there was no direct evidence of Kellington’s mental state, the government asked the jury to infer from the overall circumstances that Kellington must have known MacFarlane was asking him to assist in the destruction and con-' cealment of objects useful to an “official proceeding.” Kellington’s repeated claim on the stand was that he simply did not know or suspect at the time that he was being asked to do anything other than wind up the business affairs of a former client who had no plans to contest his prior conviction and, in fact, expected to return to Vermont to serve out his sentence. On this point, Jarvis testified that so long as a lawyer does not affirmatively know his client’s objectives to be illegal, the lawyer is obliged by the duty of loyalty and zealous representation to carry out his client’s wishes. See Or. DR 7-101(A)(l) (“A lawyer shall not intentionally fail to seek the lawful objectives of the lawyer’s client through reasonably available means permitted by law and these disciplinary rules except as provided by DR 7-101(B).”).18
By instructing the jury that the experts’ testimony was merely “background” information, and by preventing counsel from arguing the importance of the testimony in closing, the district court effectively rendered the experts’ opinions nugatory despite the fact that such evidence was obviously relevant to negate criminal intent and/or to establish a “bona fide legal representation” defense under § 1515(c). The evidence of Kellington’s ethical obligations was not only admissible and relevant to the question of his intent, Kellington had a fundamental right under [1100]*1100the Sixth Amendment to present his theory of the ease in closing arguments. See Herring v. New York, 422 U.S. 853, 858, 95 S.Ct. 2550, 45 L.Ed.2d 593 (1975) (“The right to the assistance of counsel has thus been given a meaning that ensures to the defense in a criminal trial the opportunity to participate fully and fairly in the adversary factfinding process. There can be no doubt that closing argument for the defense is a basic element of the adversary factfinding process in a criminal trial. Accordingly, it has universally been held that counsel for the defense has a right to make a closing summation to the jury....”); Conde v. Henry, 198 F.3d 734, 739 (9th Cir.1999) (“Although a court may limit arguments that are unduly time consuming, ‘stray unduly from the mark, or otherwise impede the fair and orderly conduct of the trial,’ denying an accused the right to make final arguments on his theory of the defense denies him the right to assistance of counsel .... By preventing [petitioner] from arguing that no robbery had occurred and that he lacked the requisite intent to rob, the trial court’s order violated the defendant’s fundamental right to assistance of counsel and right to present a defense, and it relieved the prosecution of its burden to prove its case beyond a reasonable doubt.”) (quoting Herring, 422 U.S. at 862, 865, 95 S.Ct. 2550). The district court’s decision to preclude ethics argument at closing violated this right.
The government’s theory of criminal intent was that any reasonable person, and especially an attorney, would have known he was being asked to impair the availability of objects for use in an official proceeding. In its closing argument, the government pursued two strategies which made it essential for the defense to have the freedom to argue the ethical issues. First, the government repeatedly asked the jury to infer Kellington’s criminal intent by using “common sense.” Viewing the circumstances from the perspective of common sense, the prosecution contended, no one could fail to recognize that MacFarlane was asking to have evidence destroyed or concealed.19 This argument reduced complex questions regarding the special obligations of the attorney-client relationship (and Kellington’s awareness of those obligations) into matters of “common sense.” It also reinforced the district court’s erroneous instruction that the ethics testimony was simply background information, rather than evidence relevant to the question of Kellington’s mental state.
Second, flatly disregarding the court’s order not to make ethics arguments in closing, the government repeatedly invited the jury to infer criminal intent on the part of Kellington from the fact that he did not follow his “duty to investigate”— implying incorrectly from the expert testimony that such a duty unequivocally exists once a lawyer discovers a client has lied.20 The government also implied that Kellington had no ethical duty to withhold information of any kind from Young in the [1101]*1101initial call.21 These arguments not only obfuscated the relationship between Kell-ington’s intent and his ethical obligations, it allowed the government to place its spin on the expert’s testimony despite the district court’s order.
By obeying the court’s order precluding argument that ethical obligations dictated Kellington’s conduct, on the other hand, counsel for Kellington was unable to frame and give content to the core of his defense — that Kellington was attempting (however imprudently in hindsight) to provide his client with bona fide legal representation, and that much of the conduct from which the government would have the jury infer criminal intent can be explained by. his ethical obligations to MacFarlane, his background and experience, and the nature of the attorney-client relationship. Combined with the court’s instruction to the jury that the ethics testimony was merely background information, we can have no confidence that the jury gave due regard to the ethics evidence in assessing the government’s largely circumstantial case against Kellington on the question of criminal intent. Accordingly, we affirm the district court’s considered judgment that, “the evidence convicting Kellington of a. . violation of 18 U.S.C. § 1512(b)(2)(B) in conjunction with the court’s restrictions on closing argument preponderates sufficiently heavily against the verdict that a serious miscarriage of justice may have occurred.”
In short, there was no abuse of discretion in granting Kellington’s motion for new trial. Indeed, we owe special deference -to the district court’s evaluation of the testimony at trial (especially Kelling-ton’s) in its conclusion that the evidence preponderates sufficiently heavily against the verdict to merit re-trial.
AFFIRMED AND REMANDED FOR FURTHER PROCEEDINGS.