Dismissal in the Interest of Justice

May 23, 2026

Most of the case-level substance-over-form doctrines the project documents under the asymmetry are foreclosed in current American criminal procedure. Whren closes the pretext door for Fourth Amendment defenses. The immunity stack shields the operators of the adjudicatory chain from personal accountability. United States v. Armstrong, 517 U.S. 456 (1996), sets a high bar even for discovery into selective motivation. The pattern is consistent and the diagnostic is sharp.

But there is one corner of the doctrine where the case-level form/function check has been preserved by statute in some states, and the doctrine deserves its own name. It is the doctrine of dismissal in the interest of justice — the authority of a trial judge to dismiss a legally prosecutable case, on the court’s own motion or on the defendant’s, because the substance of proceeding with it would do more damage to justice than dismissing it would. In New York the motion bears the name Clayton motion, after the 1973 Second Department case that articulated the factors. In California the authority sits in Penal Code § 1385. Other states have analogs. Federally, the equivalent is much narrower.

New York — the Clayton motion (CPL § 210.40)

The cleanest exemplar is N.Y. Crim. Proc. Law § 210.40, “Motion to dismiss indictment; in furtherance of justice.” The statute’s operative authority:

“An indictment or any count thereof may be dismissed in furtherance of justice … when … such dismissal is required as a matter of judicial discretion by the existence of some compelling factor, consideration or circumstance clearly demonstrating that conviction or prosecution of the defendant upon such indictment or count would constitute or result in injustice.”

CPL § 210.40 then enumerates the factors the court “must” consider “individually and collectively.” The factors track the framework articulated in People v. Clayton, 41 A.D.2d 204 (2d Dep’t 1973), and include the seriousness of the offense, the evidence of guilt, the history of the defendant, “exceptionally serious misconduct of a law enforcement officer relating to” the prosecution, the impact of dismissal on the community, and — directly responsive to the question of how a quota-driven, immunity- shielded enforcement system maintains public legitimacy:

factor (g): “the impact of a dismissal upon the confidence of the public in the criminal justice system.”

That factor is the statutory recognition that public confidence in the system is a doctrinally cognizable input into the case-level dismissal decision. A judge faced with a prosecution whose substance would erode public confidence in the system has explicit statutory authority to consider that erosion as a factor weighing toward dismissal. The factor doesn’t compel dismissal; it permits the judge to weigh it. That permission, in the case- level forum, is exactly the move Whren forecloses on the Fourth Amendment side.

California — Penal Code § 1385

California’s parallel authority is in Penal Code § 1385, structurally broader (no enumerated factor list) but operating on the same principle:

“The judge or magistrate may, either on motion of the court or upon the application of the prosecuting attorney, and in furtherance of justice, order an action to be dismissed.”

The body of California case law construing “furtherance of justice” is extensive. People v. Superior Court (Romero), 13 Cal. 4th 497 (1996), is the canonical decision on § 1385 in the sentencing-enhancement context (a judge’s discretion to strike a prior conviction under the Three Strikes Law), but the principle reaches more broadly: in California, the trial judge has on-motion authority to dismiss a case whose continued prosecution would not serve justice. The factors are common-law-developed rather than statutorily enumerated, but the public-confidence-in-the-system consideration is one of the factors courts have invoked.

(California amended § 1385 in 2024, eff. Jan. 1, 2024, updating procedural language without altering the underlying authority. The quoted text above is the current version.)

Other state systems

Variants exist across the states — some by statute, some by common-law judicial-supervisory authority. Texas, Illinois, Massachusetts, and others have their own versions, with terminology and factor lists varying. The pattern is that, in the case-level forum, the political branches in many state systems have codified an explicit discretion that the federal system has largely declined to codify in the same form.

Federally — a narrower picture

The federal landscape lacks a true Clayton-style analog. Two authorities do some related work, but neither maps cleanly onto the state interest-of- justice doctrine.

Federal Rule of Criminal Procedure 48 is structurally mechanical, not substantive. Rule 48(a) requires the government to seek “leave of court” to dismiss an indictment and prohibits dismissal mid-trial without the defendant’s consent. Rule 48(b) allows the court to dismiss for “unnecessary delay.” Neither is a grant of equitable “furtherance of justice” power to the federal court — the “leave of court” requirement of Rule 48(a) operates as a check on prosecutorial badge-of-favor dismissals (see Rinaldi v. United States, 434 U.S. 22 (1977)), not as an independent dismissal authority for the judge. The federal court does not, by Rule 48, have what the NY and CA judges have by statute.

The outrageous-government-conduct due-process doctrine is the federal substantive route, and it is narrow. Its foundation is Rochin v. California, 342 U.S. 165 (1952), the “shocks the conscience” case (Frankfurter, J., describing stomach pumping for evidence: “This is conduct that shocks the conscience”). The federal-criminal-procedure variant is the dicta in United States v. Russell, 411 U.S. 423, 431-32 (1973) (Rehnquist, J.):

“[W]e may some day be presented with a situation in which the conduct of law enforcement agents is so outrageous that due process principles would absolutely bar the government from invoking judicial processes to obtain a conviction ….”

The “some day” framing is durable: the Court has not in fact held conduct outrageous enough to bar prosecution under this doctrine, and subsequent decisions (notably Hampton v. United States, 425 U.S. 484 (1976)) have narrowed the path. The doctrine survives in lower courts but rarely succeeds — the threshold is “shocks the conscience” plus sting-operation-misconduct-style government provocation, not the broader “this prosecution undermines the system’s legitimacy” framing that NY factor (g) explicitly authorizes.

So the federal case-level substantive valve exists but is much narrower than the state interest-of-justice analogs. A defendant in federal court has no Clayton motion; the state-court defendant in New York or California does.

Why this matters within the asymmetry framework

This concept is the codified case-level counter-balance to the case-level foreclosures the project documents elsewhere. Most of the substance-over-form doctrine works in only one direction: the system can recharacterize, the citizen mostly cannot. Whren closes the pretext door on the defendant’s side; the immunity stack closes the personal- accountability door on the actor-accountability side; Armstrong closes the motive-discovery door. The case-level form/function check is foreclosed in most of the doctrinal landscape.

But in jurisdictions with a Clayton motion or its analog, the case-level check is not foreclosed. It is, by statute, explicitly preserved. A judge in New York or California considering a prosecution that is legally valid but substantively unfair — a quota-driven traffic case, a charge stacked to pressure a plea, a case where the form is preserved but the function would damage public confidence — has codified discretion to dismiss in furtherance of justice, and is explicitly directed to consider the impact of that decision on public confidence in the system. It is the political branches’ codified version of Mugler v. Kansas’s “real or substantial relation” check and Lawton v. Steele’s three-part test — moved from the constitutional-law substance-over-form analysis at the police-power level to the case-level discretionary-dismissal forum.

That codification is what makes this corner of the doctrine matter for the overall asymmetry. The project’s documentation of the form/function gap is not a claim that the doctrine has no internal correctives — it’s a claim that those correctives are largely foreclosed at the case level in current practice. The Clayton motion / § 1385 family is one of the places where the doctrine has not foreclosed itself, and that’s worth knowing precisely.

Practical caveats

The interest-of-justice dismissal is discretionary, rare in practice, and judge-dependent. It is not a routine motion that succeeds at scale; the typical published-case win rate is low, with most successful Clayton motions involving unusually sympathetic defendant facts or unusually serious police misconduct (sometimes both). It is best understood as a genuinely-preserved doctrinal valve that exists for the exceptional case where the form and function have diverged enough that the judge concludes proceeding would not serve justice.

It is also jurisdictionally bounded. A defendant in a state without a statutory or common-law interest-of-justice dismissal authority — and federally — has substantially less of this remedy available. The state-by- state map matters.

The doctrine is not a defense and is not raisable at trial; it is a pre-trial or pre-judgment motion. Counsel files it; the court rules on it as a matter of discretion. The grounds are statutory in NY (CPL § 210.40’s factor list) or common-law-developed in CA (under § 1385’s broader “furtherance of justice” standard) or some hybrid in other jurisdictions.

What this doctrine is is the doctrinally-recognized point at which the case-level form/function check is statutorily preserved rather than judicially foreclosed. That preservation, where it exists, is one of the few visible answers to the question the asymmetry framework keeps asking: is there any forum at the case level where the duck test runs the other direction, and a defendant can use it as a shield? In Clayton motion jurisdictions, the answer — qualified, discretionary, rare in practice, but doctrinally real — is yes.