On May 13, 2026, New York University law professor Daniel Harawa published an essay on SCOTUSblog with a blunt title: The government's Fourth Amendment double standard. His argument is that the federal government's pending certiorari petition in United States v. Carter contradicts the position it took in Noem v. Vasquez-Perdomo. Race, the government says, can inform what an officer reasonably suspects. The same race becomes invisible when a court asks whether the citizen on the other end of the encounter was actually free to leave.
Harawa's piece is not academic. It maps an active battleground. Across DUI stops, drug interdiction cases, and digital-search litigation, defense lawyers are surfacing the same imbalance in suppression briefs. The doctrines that protect officers (good faith, attenuation, mistake of law, qualified immunity) are stacking on top of the doctrines that limit defendants (threshold standing burdens, narrow remedies, sequencing rules). If you are facing charges that depend on evidence from a stop, a search, or a digital pull, this is the doctrinal terrain your motion to suppress will cross.
The asymmetry, mapped
On the officer side, the Supreme Court has built a series of escape valves. The good faith exception under United States v. Leon and its progeny lets evidence in when officers relied on a warrant later found defective. Heien v. North Carolina excuses reasonable mistakes of law. Utah v. Strieff permits attenuation when a discovered warrant intervenes between an unlawful stop and the evidence seized. Qualified immunity removes the civil liability deterrent that the exclusionary rule was supposed to backstop. A September 2025 Wisconsin Law Journal piece on Fourth Amendment qualified immunity describes the parallel: officers escape civil liability through clearly-established-law framing even when their conduct is later ruled unlawful.
On the defendant side, the architecture cuts the other way. The accused must first establish standing, meaning a personal reasonable expectation of privacy in the place or thing searched, before the State has to justify anything. The UNC School of Government's suppression manual walks through that burden allocation. Remedies are narrower than the rights would suggest. And as Matthew Tokson and Michael Gentithes argue in their 2025 Georgetown Law Journal article The Reality of the Good Faith Exception, the practical effect of doctrines like Leon is to incentivize police and prosecutors to over-collect data and aggressively reinterpret old authorities before warrant requirements harden.
What this looks like in a DUI stop
The typical DUI suppression posture starts with reasonable suspicion for the stop. After Heien, an officer's mistaken reading of a traffic statute can still support the stop if the mistake was reasonable. From there, the government layers attenuation. If a license check during the stop turns up a warrant, Strieff treats the warrant as an intervening cause that purges the taint of an earlier illegal seizure. If the underlying statute or precedent later collapses, good faith reliance under Davis v. United States often keeps the breath, blood, or field-sobriety evidence in.
Defense lawyers writing suppression motions in 2026 are doing two things differently. First, they are framing the imbalance for the trial court record, citing Harawa's framing of selective doctrinal application so the appellate court has a clean issue to review. Second, they are pre-empting good faith with a developed flagrancy record under Brown v. Illinois, walking through purpose, flagrancy, and temporal proximity in the brief rather than waiting for the State to invoke attenuation in its response. The Harvard Law Review's 2025 piece (Attenuating) the Taint of Poverty provides framing on how attenuation doctrine produces unequal protection across class lines.
Drug interdiction: when stops bleed past mission scope
In drug-interdiction cases, the asymmetry stacks faster. A pretext stop, a dog sniff, and a question about travel plans all operate inside the timing rule from Rodriguez v. United States. When the stop extends beyond its traffic mission without independent reasonable suspicion, the seizure becomes unlawful. The government then reaches for good faith reliance on circuit precedent, or attenuation through a discovered warrant, or both. Defenders are now structuring suppression motions to challenge each doctrine in sequence rather than treating them as a single defense for the State to choose from.
Digital searches: the Chatrie signal
The most active front in 2026 is digital. The Supreme Court heard argument in Chatrie v. United States (No. 25-112) on April 27, 2026. The case asks whether a geofence warrant, which pulled three steps of Google location data, violated the Fourth Amendment. According to SCOTUSblog's argument recap, the Court of Appeals had already let the evidence in under the good faith exception. Justice Alito noted during argument that the good faith fallback would likely defeat relief regardless of how the Court ruled on the merits. Independent reporting from Reason on the argument made the same point about the doctrinal stack.
The pre-argument case preview set out the three-step Google data request at the center of the case. For defense lawyers, the lesson is that the merits ruling in Chatrie, expected in late June or early July 2026, may matter less than how the Court treats good faith reliance on the same kinds of warrants going forward. Cell-site, smart-device, and tower-dump motions for the rest of 2026 will be drafted with that in mind.
State courts: a workaround that closed
State supreme courts have long been a place where defendants could seek stronger protection under independent state constitutional grounds. That door is narrowing. In State v. Rogers, 377PA22 (N.C. Oct. 17, 2025), the North Carolina Supreme Court adopted a good faith exception under the state constitution for cell-site tracking, overruling its prior decision in State v. Carter. UNC School of Government's Joseph Hyde published a critique on November 11, 2025: The Exclusionary Rule and its Discontents. Hyde argues the court prioritized remedies over rights without resolving whether the state constitution requires an exclusionary rule at all.
The defense response is to brief independent state grounds explicitly, to argue that the state constitution's text and history demand stronger remedies than the federal floor, and to force the state supreme court to answer the rights question before the remedy question. The same year saw the U.S. Supreme Court tighten the emergency-aid exception in Case v. Montana, decided January 14, 2026, to an objectively-reasonable-basis standard. The SCOTUSblog mid-term update covers that decision and previews Chatrie. Defense lawyers are using Case in briefing to argue that the Court is policing officer-side doctrines selectively when it wants to.
Standing and the sequencing problem
Before any of the substantive doctrines matter, a defendant has to clear standing. The accused must show a personal reasonable expectation of privacy in the searched place or item, and that showing comes first, before the State has to justify anything. The Maryland Appellate Court addressed the procedural side of this in Martin v. State, No. 101 (Sept. Term 2024), holding that the State must timely raise a standing challenge or be estopped from raising it later. That ruling matters because it limits a common State tactic: holding standing back as a fallback after losing on the merits.
Practical motion architecture
Defense suppression practice in 2026 is converging on a structure built for the asymmetry. Lead with the standing facts and develop them, so the threshold burden is plainly met on the face of the motion. Frame the State's substantive burden once standing is established. Pre-empt good faith with a flagrancy record drawn from the bodycam, dispatch logs, and the officer's training history. Brief the four Brown v. Illinois attenuation factors (temporal proximity, intervening circumstances, purpose, and flagrancy) on the record rather than ceding them to the State's response. And request specific factual findings from the trial court that the appellate record will need.
Two cases to watch close out 2026. The first is Chatrie, with a decision expected in late June or early July. The second is whether the Court grants certiorari in United States v. Carter, the case at the center of Harawa's essay. Either could reshape the asymmetry argument for the October 2026 term and beyond. Until then, defense lawyers are not waiting. They are putting the double standard on the record now.
If you are facing charges that depend on a stop or search
The doctrines described here are technical, and they apply differently in every jurisdiction. Suppression timing rules vary. State constitutions vary. The strength of a motion turns on facts that only the bodycam, the dispatch audio, the warrant affidavit, and the officer's prior reports can reveal. If your case rests on evidence from a traffic stop, a home entry, a cell-site pull, or a digital warrant, the time to ask about a suppression strategy is before pretrial deadlines close.
Related reading
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Sources
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The government's Fourth Amendment double standard, Daniel Harawa, SCOTUSblog (May 13, 2026).
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Justices appear mixed on whether geofence warrant violated the Fourth Amendment, SCOTUSblog (April 2026).
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Court to hear argument on law enforcement's use of geofence warrants, SCOTUSblog (April 2026).
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The Exclusionary Rule and its Discontents: State v. Rogers and the Good Faith Exception, Joseph Hyde, UNC School of Government (Nov. 11, 2025).
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The Reality of the Good Faith Exception, Matthew Tokson & Michael Gentithes, Georgetown Law Journal (2025).
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A mid-term update on criminal law at the Supreme Court, SCOTUSblog (Jan. 2026).
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SCOTUS weighs geofence warrants and the future of digital privacy, Reason (April 28, 2026).
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Kimery Darren Martin v. State of Maryland, No. 101, Sept. Term 2024, Maryland Appellate Court (2025).
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Fourth Amendment-Qualified Immunity, Wisconsin Law Journal (Sept. 2, 2025).
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(Attenuating) the Taint of Poverty, Harvard Law Review, Vol. 138 (2025).
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Suppression Motions, NC PRO Criminal Procedure Manual, UNC School of Government.
Note: This article contains AI-assisted content and has been reviewed by our editorial team.
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