Stephen Haar appeals from an order of the federal district court denying his petition for a writ of habeas corpus. His petition asserts that New Mexico refused him a jury trial in violation of his federal constitutional rights.
I
Mr. Haar was charged with two offenses, aggravated battery 1 and criminal damage to property, 2 both arising out of the same incident. The aggravated battery charge carried a maximum penalty of one year’s imprisonment 3 while the criminal damage to property charge carried a maximum sentence of six months. 4 The case was tried in the magistrate court of Bernalillo County, *1548 New Mexico, where the defendant was provided a jury trial pursuant to the local court rules. 5 The jury acquitted Mr. Haar of the aggravated battery charge but found him guilty of the lesser included offense of simple battery, a crime that carried a maximum penalty of six months’ imprisonment. 6 The jury also found him guilty of criminal damage to property. The magistrate imposed two consecutive sentences of ninety days’ imprisonment for the crimes.
New Mexico law provides that a criminal defendant who is convicted in the magistrate court is entitled to appeal through a trial de novo in the district court. 7 Mr. Haar exercised this right to retrial and requested that his case again be heard by a jury. The district court denied this request and reconvicted Mr. Haar of simple battery and criminal damage to property, sentencing him to two concurrent terms of six months’ imprisonment.
Mr. Haar sought review of the district court conviction in the New Mexico Court of Appeals.
State v. Haar,
II
In the habeas petition before us, Mr. Haar reasserts his claim that he was constitutionally entitled to a jury trial in the district court. He argues that since he faced conviction in the district court for two crimes arising out of the same transaction, and since the aggregate of the potential sentences exceeded six months, he was entitled to a jury trial. In responding to this argument, we examine the Supreme Court’s interpretation of the constitutional right to a jury trial.
A
The sixth amendment provides that “[i]n all criminal prosecutions, the accused shall enjoy the right to a speedy and public trial, by an impartial jury .... ” U.S. Const. amend. VI. In
Duncan
v.
Louisiana,
*1549
In
Duncan,
the Court noted that “there is a category of petty crimes or offenses which is not subject to the Sixth Amendment jury trial provision and should not be subject to the Fourteenth Amendment jury trial requirement here applied to the States.”
In determining whether the length of the authorized prison term or the seriousness of other punishment is enough in itself to require a jury trial, we are counseled by District of Columbia v. Clawans, supra, to refer to objective criteria, chiefly the existing laws and practices in the Nation.
In
Duncan,
the Supreme Court recognized that it was necessary to draw a line in the spectrum of crime, separating petty offenses from serious infractions.
The plurality opinion of Justice White reiterated the Court’s reliance on “objective criteria reflecting the seriousness with which society regards the offense, ... the most relevant such criteria being the severity of the maximum authorized penalty.”
In drawing the line at six months, the plurality noted that the division “attachfes] different consequences to events which, when they lie near the line, actually differ very little.”
Indeed, the prospect of imprisonment for however short a time will seldom be viewed by the accused as a trivial or “petty” matter and may well result in quite serious repercussions affecting his career and his reputation. Where the accused cannot possibly face more than six months’ imprisonment, we have held that these disadvantages, onerous though they may be, may be outweighed by the benefits that result from speedy and inexpensive nonjury adjudications. We cannot, however, conclude that these administrative conveniences, in light of the practices that now exist in every one of the 50 States as well as in the federal courts, can similarly justify denying an accused the important right to trial by jury where the possible penalty exceeds six months’ imprisonment.
B
Both
Duncan
and
Baldwin
examined the constitutional right to a jury trial that arises when a defendant is charged with a single offense. The instant case involves the right to a jury trial when a defendant is charged with multiple, but admittedly petty, offenses arising out of the same transaction.
13
The Supreme Court has not resolved the scope of the right to a jury trial under these circumstances.
14
However, the Tenth Circuit examined this issue in
United States v. Potvin,
Potvin
involved two defendants who each faced two petty offense charges arising out of the same incident. The petty offenses carried possible, sentences of six months each. The defendants demanded and were denied a jury trial, and upon conviction, they appealed to this court. We stated that “the defendants can view as no less serious a possible penalty of a year in prison when charged with two offenses arising out of the same act, transaction, or occurrence, than if charged with one offense having a potential penalty of one year’s imprisonment.”
In this appeal, the State does not challenge the holding of Potvin. Indeed, this *1551 panel is itself bound by Potvin’s holding unless the decision is overruled by the en banc court. Instead, the State argues that Potvin is inapposite in Mr. Haar’s case. 15 Mr. Haar was charged with two petty offenses in the district court, each carrying a potential sentence of six months’ imprisonment. However, the New Mexico courts concluded that in Mr. Haar’s trial de novo he could receive no greater sentence than the 180 days imposed by the magistrate. The State argues that Potvin does not require a jury trial in the de novo proceedings since Mr. Haar was not actually facing the possible imposition of a sentence in excess of six months. In considering this argument, we examine the rationale underlying the Potvin decision.
C
Potvin
implicitly recognizes that modern criminal codes contain proscriptions that are far more complex, detailed, and extensive than the criminal law that existed at the time of the adoption of the Constitution.
See Duncan,
A determination of the right to a jury trial on the basis of the aggregate of the statutorily prescribed penalties imparts a pragmatic temper to the Supreme Court’s concept of a “serious offense.” By treating the entire criminal act, transaction, or occurrence, rather than its constituent offenses, as the relevant determinant of the seriousness of the crime, the approach comports with both the realities of multiple-crime charging and the language of the sixth amendment, which guarantees the right to a jury trial in the context of “criminal prosecutions.” 18 It also comports with the central purpose of the jury, protecting the citizen from governmental oppression, because it assures that a jury trial is available when a defendant faces sentences that, in aggregate, are potentially oppressive. Moreover, the approach is consistent with Duncan’s specification that objective criteria be used in determining the seriousness of the crime. The aggregate of the statutorily prescribed penalties provides the objective indicia of the opprobrium that society attaches to the entire criminal act and is thus the appropriate measure of the act’s seriousness. Applying this objective measure, we should determine Mr. Haar’s right to a jury trial by the aggregate of the two six-month sentences that New Mexico prescribes for the offenses constituting the criminal incident. The twelve-month aggregate potential penalty, rather than the 180-day maximum sentence that Mr. Haar actually faced, reflects society’s moral judgment of the whole of his criminal act. Thus, under an objective measure of the aggregate penalty, Mr. Haar would be entitled to a jury trial.
Alternatively, the right to a jury trial for aggregate petty offenses might be based on the aggregate penalty that the defendant actually faces at the commencement of the trial. Rather than broadening the definition of a “serious offense,” this approach effectively recognizes a corollary to that concept, establishing a right to a jury trial where a defendant faces the consequences, as well as an actual charge, of a serious offense. Like the objective measure, this subjective approach views multiple charges realistically, treating the discrete criminal transaction, rather than the particular charged offenses, as the determining factor of the right to a jury trial. By focusing on the potential penalty actually faced by the defendant, the approach ensures that a jury trial is still available in all eases where the defendant is actually threatened with a serious penalty, regardless of the objective seriousness of the individual offenses charged. The approach thus protects the defendant from vindictive prosecution, interposing the jury between the government and the defendant in all cases where there is a risk of serious punishment and a consequent possibility of prosecutorial abuse. It directly embraces the principle value identified by
Duncan
as underlying the right to a jury trial: the prevention of oppressive prosecutions.
See
D
We are thus faced with choosing between an objective and a subjective measure of aggregated criminal penalties in determining the right to a jury trial. In choosing between these two interpretations of
Potvin,
we note that the case has sparked considerable debate.
Compare Maita v. Whitmore,
While we find the arguments in favor of the objective interpretation of
Potvin
appealing, we conclude that an expansion of the definition of a “serious offense” is a matter better left to the Supreme Court. Furthermore, given the absence of Supreme Court guidance on this issue, we prefer the interpretation that more narrowly confines the impact of
Potvin
on state courts. Accordingly, we adopt the subjective interpretation. We hold that a defendant is entitled to a jury trial for multiple petty offenses arising out of the same act, transaction, or occurrence only if he is actually threatened at the commencement of trial with an aggregate potential penalty of greater than six months’ imprisonment.
Accord United States v. Smyer,
III
We hold that the defendant was not constitutionally entitled to a jury trial under the Supreme Court’s decisions in Duncan v. Louisiana and Baldwin v. New York, or under our decision in United States v. Pot-vin. The order of the district court denying the petition for a writ of habeas corpus is affirmed.
Notes
. See N.M.Stat.Ann. § 30-3-5 (1978).
. See N.M.Stat.Ann. § 30-15-1 (1978).
. See N.M.Stat.Ann. § 30-1-6(B) (1978).
. See N.M.Stat.Ann. § 30-1-6(C) (1978).
. See N.M.Magis.R.Crim.P. 23.
. See N.M.Stat.Ann. §§ 30-3-4 & 30-1-6(C) (1978).
. See N.M.Stat.Ann. § 35-13-2 (1978) (amended 1981).
. In reaching this conclusion, the Court identified a number of values that underlie the right to a jury trial. In particular, the Court noted that jury trials are granted “to prevent oppression by the Government,” that they provide “an inestimable safeguard against the corrupt or overzealous prosecutor and against the com
*1549
pliant, biased, or eccentric judge,” and that they reflect “a reluctance to entrust plenary powers over the life and liberty of the citizen to one judge or to a group of judges.”
.
Cheff v. Schnackenberg,
. In the article, the authors examine the common-law antecedents of the sixth amendment jury trial requirement. They conclude that the demarcation between petty and serious is not a rigidly fixed, mechanical concept and instead is influenced by the community’s “moral judgment.” See Frankfurter & Corcoran, Petty Federal Offenses and the Constitutional Guaranty of Trial by Jury, 39 Harv.L.Rev. 917, 980-81 (1926).
. Justice White, joined by Justices Brennan and Marshall, explicitly concluded that the six-month sentence provided an appropriate line for demarking serious from petty offenses and reaffirmed that the primary purpose of the jury is to prevent possible oppression by the government by interposing the judgment of laymen— not another arm of the government — between the accused and the accuser.
See
. In the special case of criminal contempt, the Supreme Court has considered the actual sentence imposed when determining the right to a jury trial.
See Muniz v. Hoffman,
. New Mexico does not contest that the petty offenses arose out of the same transaction.
. The Supreme Court addressed the impact of multiple criminal contempt charges in
Codispoti v. Pennsylvania,
. Asa threshold matter, the State argues from
Ludwig v. Massachusetts,
. History indicates that the list of criminal proscriptions has continuously expanded with time. For example, in the era of Henry III (1207-72), there were eleven known felony offenses. See 2 J. Stephen, A History of the Criminal Law of England 219 (1883). By the era of Chief Justice Coke (1552-1634), the Star Chamber had expanded the common law list of felonies to twenty. Id. By Blackstone’s era (1723-1780), statutory enactments had increased the list of capital felonies to approximately 160, id., and Blackstone himself complained of the relentless growth of the felony category through parliament’s actions. 4 W. Blackstone, Commentaries *18. An examination of modern codes suggests that, while the severity of the penalties for most felonies has diminished, the expansion of criminal proscriptions has not abated.
. The central purpose of the jury trial is to protect the accused citizen from government oppression.
E.g., Ludwig,
. See
also Ludwig v. Massachusetts,
. Indeed, in this regard either construction of Potvin is more consistent with the values underlying Duncan and Baldwin than simply asking whether any particular charge carries a potential penalty of more than six months’ imprisonment. See supra note 17.
. We note that, beyond the general threat of governmental vindictiveness, multiple offense charging permits a prosecutor to bring multiple petty offense charges against a defendant for a discrete criminal act, transaction, or occurrence for the specific purpose of threatening the defendant with the consequences of a serious offense while denying him the opportunity for a jury trial. Determining the right to a jury trial on the basis of the actual penalty facing the defendant provides a safeguard against the prosecution’s use of creative charging to deny the opportunity for a jury trial.
. State courts generally have not followed
Potvin. See, e.g., Smith v. State,
. Arguably, the sentence imposed after trial in the magistrate court, if it sets the upper limit on the sentence the district court can impose in
de novo
proceedings, may be a measure of the societal opprobrium attached to the defendant’s act. Aside from this observation, we note that the Supreme Court has indicated that subjective factors are of some relevance to the question of the right to a jury trial,
see Baldwin,
. New Mexico has recently amended its trial de novo procedure to permit sentences in excess of those imposed in the magistrate court. See N.M.Stat.Ann. § 35-13-2 (Supp.1982). The issue of this amendment’s impact on the right to a jury trial is not before us in this case.
