Selective prosecution is a constitutional claim that the government singled you out for criminal charges based on an improper reason — your race, religion, national origin, or exercise of a constitutional right — rather than legitimate law enforcement judgment. Every prosecutor has broad discretion to decide which cases to bring, but that discretion stops at the equal protection guarantee. The claim exists at both the state and federal level, and the test is the same in both. It is also one of the hardest claims to win in all of criminal law. No defendant has succeeded on the merits of a racial selective prosecution claim since 1886.
The Constitutional Basis
If you are prosecuted by a state, your claim runs through the Fourteenth Amendment, which bars any state from denying “any person within its jurisdiction the equal protection of the laws.”1Constitution Annotated. Fourteenth Amendment If you are prosecuted federally, the Fifth Amendment’s Due Process Clause carries an equal protection component that does the same work.2Constitution Annotated. Amdt5.7.3 Equal Protection Under either route, the Supreme Court has held that the decision whether to prosecute “may not be based on an arbitrary classification such as race or religion.”3Justia. United States v Armstrong, 517 US 456 (1996)
What You Have to Prove
A selective prosecution claim has two elements, and both must be present. Statistical disparity alone will not do it. Circumstantial evidence of bias alone will not do it. You need discriminatory effect and discriminatory purpose.
Discriminatory Effect
You must show that “similarly situated individuals of a different race were not prosecuted.”3Justia. United States v Armstrong, 517 US 456 (1996) That means identifying real people who committed the same offense, had comparable criminal histories, and faced similar available evidence, but were not charged. The comparison has to be specific. General crime statistics or broad sentencing disparities do not satisfy this element on their own.
In United States v. Armstrong, the defense pointed to a newspaper article about disparate sentencing, an attorney’s secondhand conversation with a drug treatment center employee, and another attorney’s observations from state court practice. The Supreme Court called that “hearsay and reported personal conclusions based on anecdotal evidence” and held it was not enough.4Cornell Law Institute. United States v Armstrong, 517 US 456 (1996) Statistical evidence can strengthen the showing when it is paired with specific comparators and tied to the charging decision at issue, but raw numbers in a vacuum rarely move a court.
Discriminatory Purpose
Even with strong evidence of unequal outcomes, you also have to prove the prosecutor acted with deliberate intent to discriminate. A policy that happens to fall harder on one group does not violate equal protection unless the disparity was purposeful. This is where most claims die. Proving what was in a prosecutor’s head when a charging decision was made is extraordinarily difficult without internal documents, and getting those documents is its own fight.
The kinds of things that support this element include internal communications showing bias, inconsistent public statements, a documented pattern of targeting one group, or a history of discriminatory conduct within the office. The goal is to show that the prosecution would not have happened but for the improper motive.
Who and What Is Protected
The classic selective prosecution claim involves a suspect classification. Race, religion, national origin, and alienage are the recognized categories, and government distinctions based on them trigger the most demanding form of judicial review.5Constitution Annotated. Facially Neutral Laws Implicating Suspect Classifications
Protection also extends to people prosecuted for exercising a fundamental constitutional right. The Supreme Court has applied the same framework to claims that the government punished someone for First Amendment activity like public protest or political speech.6Justia. Wayte v United States, 470 US 598 (1985) In Wayte, a draft registration case, the defendant argued the government targeted vocal nonregistrants. The claim failed because the government had treated all reported nonregistrants the same regardless of whether they had spoken out. Alleging a First Amendment motive is not enough on its own; you need concrete evidence that the speech was the actual trigger.
How You Raise the Claim
Selective prosecution is typically raised through a pretrial motion to dismiss, which asks the court to throw out the charges because the decision to bring them was constitutionally defective. You carry the burden from the start, because courts apply a presumption of regularity to prosecutorial decisions. That presumption assumes prosecutors act in good faith unless strong evidence shows otherwise, and it shields them from having to explain their internal decision-making until you have cleared a threshold.
The Discovery Catch-22
To build a serious claim you usually need access to the government’s internal files — charging memos, emails, case records. But under Armstrong, you cannot get that discovery unless you first produce “credible evidence that similarly situated defendants of other races could have been prosecuted, but were not.”3Justia. United States v Armstrong, 517 US 456 (1996) The Court set the bar high because discovery itself burdens the government and risks exposing prosecutorial strategy.
The result is the Catch-22 scholars have widely identified: to get the evidence that would prove selective prosecution, you need evidence that already shows selective prosecution. Assembling that initial showing typically requires independent investigation, including public records requests, analysis of published charging data, or testimony from people familiar with the office’s practices. If the threshold is met, the court may order an evidentiary hearing. Most claims never make it that far.
What You Actually Win
Here is something most people find surprising. The Supreme Court has never decided what the remedy is when a defendant proves selective prosecution. In Armstrong, the Court expressly noted it had “never determined whether dismissal of the indictment, or some other sanction, is the proper remedy” for a defendant prosecuted on the basis of race. Many lower courts and commentators have assumed dismissal is the natural outcome, but the Supreme Court has not confirmed that, and the uncertainty may itself discourage courts from reaching the merits.
Why These Claims Almost Never Win
Selective prosecution sounds powerful and functions as something close to toothless. Since Armstrong set the discovery standard in 1996, no defendant has won a selective prosecution claim on the merits in a reported federal case. The last successful racial selective prosecution claim at any level was Yick Wo v. Hopkins in 1886, where San Francisco denied laundry operating permits to all 200 Chinese applicants while granting them to nearly every non-Chinese applicant.7Cornell Law Institute. Yick Wo v Hopkins, 118 US 356 (1886) The Supreme Court held that a law “fair on its face, and impartial in appearance” still violates the Fourteenth Amendment when it is “applied and administered by public authority with an evil eye and an unequal hand.” The discrimination was so blatant and statistically overwhelming it was virtually undeniable. Most real-world prosecutorial bias is far subtler, and the legal framework was not designed to catch subtle bias.
The “similarly situated” requirement is also inherently slippery. No two defendants are identical, and prosecutors can almost always point to some distinguishing factor — weight of evidence, severity of the offense, cooperation by co-defendants — to justify treating cases differently. Combined with the discovery hurdle and the presumption of regularity, the doctrine creates a standard that is nearly impossible to meet.
That does not make raising the claim pointless. Defense attorneys report that the investigation process itself sometimes produces favorable results like reduced charges or plea offers, even when the formal legal claim does not succeed.
Selective Prosecution vs. Vindictive Prosecution
If a prosecutor added or escalated charges after you exercised a legal right, you may be thinking of a different doctrine. Vindictive prosecution involves punishing someone for exercising a right like appealing a conviction or requesting a jury trial, rather than targeting them because of who they are.
The doctrine comes from Blackledge v. Perry, where a prosecutor replaced a misdemeanor charge with a felony indictment after the defendant exercised his right to a new trial. The Supreme Court held that violated due process, reasoning that even the fear of retaliation could unconstitutionally deter defendants from exercising their rights.8Justia. Blackledge v Perry, 417 US 21 (1974)
Vindictive prosecution is somewhat easier to prove because the timing of the escalation can create a presumption of improper motive. When a prosecutor adds charges after a defendant exercises a legal right, courts may presume vindictiveness without requiring direct proof of what the prosecutor was thinking. The government can rebut that presumption by showing legitimate, independent reasons — for example, evidence that was not available at the time of the original charging decision. Selective prosecution offers no comparable presumption, which is a large part of why vindictive prosecution claims have the better track record.
Suing for Damages After the Fact
If you want to sue the prosecutor for money damages after a selective prosecution, 42 U.S.C. § 1983 is the usual vehicle for constitutional violations by state actors.9Office of the Law Revision Counsel. 42 USC 1983 – Civil Action for Deprivation of Rights Two doctrines usually block that route. Prosecutors enjoy absolute immunity from civil liability for actions taken in their role as advocates, including charging decisions, under Imbler v. Pachtman. That immunity covers the exact decision most selective prosecution claims target. Even where absolute immunity does not reach, qualified immunity requires you to show the prosecutor violated “clearly established” law, and given how rarely these claims succeed, that is a steep climb. Civil remedies exist on paper and are extraordinarily difficult to obtain in practice. Section 1983 claims tend to be more viable against law enforcement officers for selective enforcement at the arrest stage, where absolute immunity does not apply.