ORDER AND AMENDED OPINION
ORDER
The panel, with the following amendments, has voted to deny the petitions for rehearing filed by Edward Rosenthal and the Government; Judge Berzon voted to deny Rosenthal’s petition for rehearing en banc and Judges B. Fletcher and Gibson so recommend. The panel has granted the government all relief it requested, and it has granted in part the relief Rosenthal requested.
The opinion filed April 26, 2006, slip op. 4745, and published at
1. Fifteenth line (first full paragraph) of slip op. 4755, delete the entire paragraph beginning with “Although the City of Oakland” and ending with “under 21 U.S.C. § 841(a).” On the following line (26) of same page, delete the word “further”.
2. Second line from the bottom of slip op. 4758, delete the entire paragraph beginning with “Juror A’s declaration” and continuing onto following page, ending with “consider the federal law.”
The full court was advised of the petitions for rehearing and rehearing én banc and the proposed amendments included herein.
The opinion as amended is filed simultaneously with this order. No further petitions for rehearing or rehearing en banc will be entertained.
With the exception of the relief granted to the parties discussed herein, the petitions for panel rehearing and the petition for rehearing en banc are DENIED.
*945 OPINION
Edward Rosenthal appeals a three-count conviction for violations of the Controlled Substances Act (“CSA”), 21 U.S.C. §§ 801
et seq.,
asserting an as-applied Commerce Clause challenge, a claim of immunity pursuant to 21 U.S.C. § 885(d), erroneous evi-dentiary rulings and instructions by the district court, prosecutorial misconduct, juror misconduct, and the improper denial of a hearing under
Franks v. Delaware,
We have jurisdiction pursuant to 28 U.S.C. § 1291 and 18 U.S.C. § 3742(b), and we reverse the conviction solely on the issue of jury misconduct. We affirm the district court on all other grounds and dismiss the government’s claims regarding sentencing as moot.
I
In November 1996, Califоrnians passed, by voter initiative, Proposition 215, the Compassionate Use Act, which allows patients to obtain marijuana for “personal medical purposes ... upon the written or oral recommendation or approval of a physician.” Cal. Health & Safety Code § 11362.5(d). One of the purposes of the Compassionate Use Act is
[t]o ensure that seriously ill Californians have the right to оbtain and use marijuana for medical purposes where that medical use is deemed appropriate and has been recommended by a physician who has determined that the person’s health would benefit from the use of marijuana in the treatment of cancer, anorexia, AIDS, chronic pain, spasticity, glaucoma, arthritis, migraine, or any other illness for which marijuana provides relief.
Id. The statute shields patients and their primary caregivers from prosecution under state-law provisions outlawing the possession and cultivation of marijuana. See id. § 11362.5(d).
A
After passage of the Compassionate Use Act, a number of “medical cannabis dispensaries” were formed to make marijuana accessible to seriously ill patients. In support of those efforts, the Oakland City Council, on July 28, 1998, adopted 8004 Ordinance No. 12076 (“the Oakland Ordinance”), which intends to “ensure access to safe and affordable medical cannabis pursuant to the Compassionate Use Act of 1996.” Oakland, Cal., Ordinance 12076 § 1(C) (July 28, 1998) (codified as amended at Oakland, Cal., Mun. Code eh. 8.46). The Oakland Ordinance purports to “provide immunity to medical cannabis provider associations pursuant to Section 885(d) of Title 21 of the United States Code.” Id. § 1(D). Under the Ordinance, the City Manager designates “one or more entities as a medical cannabis provider association.” 1 That entity would then designate individuals to help distribute medical cannabis to seriously ill persons.
The City of Oakland designated the Oakland Cannabis Buyers’ Cooperative (“OCBC”) an official medical-cannabis-provider association. Jeffrey Jones, OCBC’s executive director, designated Rosenthal to be an agent of the OCBC and to cultivate marijuana plants for distribution to authorized medical-cannabis users. That designation, memorialized in a letter from Jones to Rosenthal on September 4, 1998, specifically states that “you are deemed a *946 duly authorized ‘officer of the City of Oakland’ and as such are immune from civil and criminal liability under Section 885(d) of the federal Controlled Substances Act.”
B
After California’s approval of the Compassionate Use Act, questions surfaced as to whether cannabis dispensaries actually were immune from prosecution under state and federal drug laws. In 1997, a California Court of Appeal held that cannabis-cultivating clubs are not “primary caregivers” within the meaning of the Compassionate Use Act and are therefore not shielded from prosecution under the state’s controlled-substanees laws.
See People ex rel. Lungren v. Peron,
The OCBC, after designation as аn official cannabis dispensary, sought dismissal of the complaint, but the district court denied that request, rejecting the OCBC’s claim that the Oakland Ordinance immunized it from federal liability under 21 U.S.C. § 885(d). The district court further denied OCBC’s requests to modify the injunction to permit an exception in cases of medical necessity. 3
Rosenthal continued cultivating marijuana for distribution to both the OCBC and San Francisco’s Harm Reduction Centеr from October 2001 until February 12, 2002, the day of his arrest.
C
Rosenthal filed a series of pre-trial motions and, eventually, a motion to dismiss the indictment. He claimed his prosecution exceeded the federal government’s powers under the Commerce Clause, violating the Tenth Amendment to the U.S. Constitution; that the government engaged in selective prosecution; that he was immune from prosecution under the fеderal immunity provision; and that the indictment was tainted due to entrapment-by-estoppel. The district court denied all of Rosenthal’s motions. It also granted the government’s motions in limine, which precluded Rosenthal from putting on a “medical marijuana” defense, introducing evidence or argument aimed at jury nullification, or introducing evidence or argument related to an entrapment-by-estopрel defense.
D
On January 31, 2003, at the conclusion of the trial, the jury found Rosenthal guilty of one count of manufacturing marijuana, in violation of 21 U.S.C. § 841(a)(1); one count of conspiracy to manufacture mari *947 juana, in violation of 21 U.S.C. § 846; and one count of maintaining a place for the manufacture of marijuana, in violation of 21 U.S.C. § 856(a)(1).
Rosenthal moved for a new trial pursuant to Federal Rule of Criminal Proсedure 33, arguing that the court erred by excluding his defense of entrapment by estoppel; the court improperly excluded 19 jurors who expressed pro-medical-marijuana beliefs; the court erroneously instructed the jury regarding its right to engage in nullification; and Rosenthal was entitled to a new trial because of juror and prosecutorial misconduct. As to juror misconduct, Rosenthal submitted deсlarations from two jurors, one of whom, on the eve of the verdict, consulted with an attorney-friend who admonished the juror to follow the judge’s instructions or risk “get[ting] into trouble.” The district court held an evi-dentiary hearing on April 1 and 8, 2003, and denied the motion for a new trial in a published order.
See United States v. Rosenthal,
On June 4, 2003, the district court sentenced Rosenthal to one day of imprisonment.
See United States v. Rosenthal,
II
Rosenthal raises a claim of immunity pursuant to 21 U.S.C. § 885(d), challenges to the district court’s evidentiary rulings and instructions regarding argument, claims of prosecutor and juror misconduct, and the denial of a Franks hearing. 4 The government cross-appeals, arguing that the district court erred in finding that Rosenthal was eligible for the “safety valve” and in departing from the minimum sentence to impose a single day of confinement.
III
The district court issued a thorough and well-reasoned order articulating its basis for denying one of the evidentiary objections, the prosecutorial-misconduct claim, and the jury-instructions claim,
see Rosenthal I,
We independently review the question regarding immunity under 21 U.S.C. § 885(d) to underscore our holding that the provision does not apply to individuals, such as Rosenthal, who are involved with medical-cannabis dispensaries.
Finally, we dismiss as moot the government’s cross-appeal challenging the length of the sentence.
IV
Rosenthal claims that he is immune from prosecution under 21 U.S.C. § 885(d).
*948
We review de novo a district court’s decision to dismiss an indictment based on an interpretation of a federal statute.
United States v. Marks,
21 U.S.C. § 885(d) states, in full:
Except as provided in sections 2234 and 2235 of Title 18[relating to illegal procurement and execution of search warrants], no civil or criminal liability shall be imposed by virtue of this subchapter upon any duly authorized Federal officer lawfully engaged in the enforcement of this subсhapter, or upon any duly authorized officer of any State, territory, political subdivision thereof, the District of Columbia, or any possession of the United States, who shall be lawfully engaged in the enforcement of any law or municipal ordinance relating to controlled substances.
Rosenthal argues that he was “lawfully engaged in the enforcement” of the Oakland Ordinance by ensuring legal distribution of marijuana to seriously ill Californians. Moreover, he notes that Oakland officials encouraged him to participate in the distribution of medical marijuana, deputized him to perform that function, and promised, in writing, his immunity from liability. For these reasons, Rosenthal claims he was a “duly authorized officer” of the City of Oakland and immunized by § 885(d).
We agree with the district court that cultivating marijuana for medical use does not constitute “enforcement” within the meaning of § 885(d).
See Rosenthal I,
We also agree with the district court’s conclusion that Rosenthal’s interpretation of the immunity provision contradicts the purpose of the CSA.
Rosenthal I,
In conclusion, we reject the premise that an ordinance such as the one Oakland enacted can shield a defеndant from prosecution for violation of federal drug laws. Rosenthal cannot avail himself of the immunity provision of § 885(d).
V
Rosenthal next contends that the court erred in refusing to grant a new trial after it became aware that one of the jurors (to whom we will refer as “Juror A”) sought advice from an attorney on the eve of rendering a verdict. The district court, upon conducting a hearing into the mattеr, concluded that Rosenthal failed to demonstrate prejudice and denied the motion for a new trial. We find that the district court applied an overly burdensome standard of proof and that, under the appropriate standard of review, prejudice is evident.
*949 A
Denial of a motion for a mistrial based on juror misconduct is reviewed for abuse of discretion.
United States v. Mills,
B
Our juror-misconduct precedents “distinguish between introduction of ‘extraneous evidence’ to the jury, and
ex parte
contacts with a juror that do not include the imparting of any information that might bear on the case.”
Sea Hawk Seafoods, Inc. v. Alyeska Pipeline Serv. Co.,
Where
ex parte
communication is involved, the district court, upon finding a reasonable possibility of prejudice, must hold a fair hearing.
See Madrid,
Extraneous-information cases, by contrast, call for more searching review; we grant a new trial if “there is a reasonable possibility that the material could have affected the verdict.”
Id.
Unlike
ex parte
cases, we generally place the burden “on the party
opposing
a new trial to demonstrate the absence of prejudice.”
Id.
(emphasis added). Although the presence of extrinsic material does not always require a new trial,
compare United States v. Bagley,
C
The district court determined that because the attorney-friend “was not askеd about and did not comment upon any of the facts in the ease nor opine on the
*950
applicable substantive law,” this case involved
ex parte
contact.
Rosenthal I,
Unlike the district court, we see the conversation between Juror A and legal counsel as involving extraneous information, not ex parte contact. Moreover, we find that the government has failed tо demonstrate that there is no “reasonable possibility” of prejudice.
Juror A believed that the district court’s instruction not to discuss the case with anyone would not rule out a conversation “about a point of law”; accordingly, she phoned up an attorney-friend to ask “if [she] had to follow the Judge’s instructions, or if [she] had any leeway at all for independent thought.” The attorney-friend responded that Juror A “definitely did have to following [sic] the Judge’s instructions, and that there was absolutely nothing else [she] could do.” When Juror A pressed the attorney, asking how there could ever be hung juries, she was told “that could only happen if the Judge gives the jury some leeway in his instructions.” The attorney “then said [Juror A] could get into trouble if [she] tried to do something outside those instructions.”
Juror A discussed the matter with another juror, who shared her own confusion with Juror A “whether a jury really has to reach a verdict solely based on the law.” After the conversation with the attorney-friend, Juror A informed this second juror that they had to follow the judge’s instructions. 6
D
We see the communication between Juror A and the attorney-friend as raising an instance of extraneous evidence, not ex parte contact. The circumstances involve the “submission of ‘extraneous information ’ ” regarding the “law applicable to the case.” Madrid, 842 F.2d at 1093 (emphasis added) (second set of internal quotation marks omitted). The communication, tantamount to a substantive legal discussion, is akin to the definition of “intent” or the distinctions between various degrees of murder. This case thus triggers an inquiry into whether there is a “reasonable possibility” that the extraneous information affected the verdict. On that question, we hold that, here, the communicаtion was an improper influence upon Juror A’s decision to acquit or convict.
Jurors cannot fairly determine the outcome of a case if they believe they will face “trouble” for a conclusion they reach as jurors. The threat of punishment works a coercive influence on the jury’s independence, and a juror who genuinely fears retribution might change his or her determination of the issue for fear of being punished. 7 Not only is there a “reasonable possibility” of prejudice, but the government has not succeeded in rebutting the presumption that a new trial is warranted. Accordingly, we reverse the district court and order a new trial.
VI
Because we reverse the district court and order a new trial, we need not address *951 the government’s cross-appeal regarding the district сourt’s imposition of a one-day sentence. 8
VII
We reverse this case for a new trial due to juror misconduct. We also hold that Rosenthal may not invoke the immunity provision of 21 U.S.C. § 885(d). Finally, we dismiss as moot the government’s appeal of the district court’s sentencing determination.
REVERSED AND REMANDED.
Notes
. A 2004 amendment to the Oakland Ordinance states that "the City Manager shall designate not more than one entity as a medical сannabis provider association.”
. The California Supreme Court denied review of the case on February 25, 1998. Peron, 70 Cal.Rptr.2d at 20.
. This court reversed and remanded the district court's denial of OCBC’s motion to modify, holding that the medical necessity defense was available and that the injunction could be modified to accommodate this defense.
See United States v. Oakland Cannabis Buyers' Coop.,
. Rosenthal originally raised an as-applied Commerce Clause challenge but abandoned it during oral argument in light of
Gonzales v. Raich,
. In
Sea Hawk Seafoods,
we noted an exception in cases of inherently coercive
ex parte
contact.
See
. During the district court's evidentiary hearing into prejudice, Juror A refused to testify on Fifth Amendment grounds. The testimony of both jurors, with the government's consent, was provided by way of declarations.
. Although we understand the district court's concern that it not legitimate or contribute to any effort by a juror to engage in nullification, we do not think the court was ever in a position to do so since the evidentiary hearing involved juror misconduct, which is the focus of concern here.
. We note that, in the wake of the Supreme Court’s holding that we apply a "reasonableness” review to sentencing decisions,
see United States v. Booker,
