4th Am: Seizures & Warrants — Criminal Law & Constitutional Protections

A town pays its magistrate a $50 fee for every search warrant he signs, and nothing when he refuses. An officer submits a detailed, sworn affidavit establishing probable cause that stolen firearms are in a specific garage. The magistrate signs. Officers execute the warrant and find the guns exactly where the affidavit said. Everything about that search looks right. And the warrant was void the moment it issued. Why?

Because a warrant needs three things, and one of them is a magistrate with no stake in the answer. This one was paid to say yes. Check every requirement in order, because any single one can sink an otherwise perfect search. By the end of this episode you will run any warrant, any exception, and any street encounter the same way.

Here is the route. First what makes a warrant valid, and how officers must execute it. Then the exceptions, the memorized list you reach for when there is no warrant. And then the second half, which switches from your property to your body. When are you seized, and what does the officer need?

Start with the baseline the whole topic rotates around. A warrantless search of a protected place is presumptively unreasonable, and the government carries the burden of fitting it into a recognized exception. Reasonableness is the touchstone. The warrant is how you prove it.

And keep two levels of suspicion straight. Probable cause is a fair probability, on the totality of the circumstances, that evidence will be found where police want to look. That is the standard for a warrant and for a full arrest. Reasonable suspicion is lower. Articulable facts, more than a hunch, that criminal activity is afoot.

A valid search warrant has three ingredients, and fact patterns usually attack one. Probable cause, sworn to under oath, almost always in an officer's affidavit. A neutral and detached magistrate. And particularity. The warrant must describe the specific place to be searched and the specific things to be seized.

Back to our garage. The affidavit was detailed, the probable cause solid, the guns exactly where the officer said. But the magistrate was paid $50 every time he signed and nothing when he refused. That is a financial stake in the answer. He is not neutral and detached, and the warrant is void however strong the probable cause.

Particularity is what stops the general warrant the founders hated, a roving license to rummage through someone's life. A warrant for a named address and a stolen 55-inch television is particular. Quick challenge. Stolen property and any evidence of criminal activity. Particular, or general? General. It invites officers to look everywhere for anything.

Probable cause often rests partly on an informant's tip, and the test is the totality of the circumstances. Reliability and basis of knowledge matter, but no single factor is required. An anonymous tip predicting hard-to-know future behavior, later confirmed by officers, can add up to probable cause.

A valid warrant still has to be executed reasonably. Officers must knock, announce their authority, and wait a reasonable time before forcing entry. But it is not absolute. They may skip the knock on reasonable suspicion that announcing would be dangerous, futile, or would let the target destroy evidence.

Scope is limited by the warrant's terms and by physics. Officers may search only where the described items could be. You cannot look for a stolen refrigerator inside a jewelry box. And a warrant to search a place is not a warrant to search everyone in it. Searching a bystander needs individualized probable cause.

Two more execution rules. Officers may detain occupants during the search, but only occupants in the immediate vicinity. They cannot follow someone who already left the block. And on an in-home arrest they may sweep adjoining spaces with no added suspicion, wider only on reasonable suspicion someone dangerous is hiding.

One outer limit. Even a search backed by a warrant can cross a line if the manner of it shocks the conscience. Forcibly pumping a suspect's stomach to recover swallowed capsules is unconstitutional. So is compelling surgery to dig out a bullet. Proportion is the theme.

Now the exceptions, the heart of the topic. Memorize the list. Search incident to a lawful arrest. The automobile exception. Plain view. Consent. Stop and frisk. Hot pursuit. Exigent circumstances. And community caretaking. No warrant? March down the list and test the elements.

Search incident to a lawful arrest. On a lawful custodial arrest, police may search the arrestee's body and the area within immediate control, with no warrant and no separate suspicion. The grabbing area is whatever the arrestee could lunge for. A traffic ticket does not unlock it. A full custodial arrest does.

Two modern refinements are tested constantly. For cars, police may search the passenger compartment incident to arrest in only two situations. The arrestee is unsecured and within reaching distance. Or it is reasonable to believe the car holds evidence of the offense of arrest. For phones, officers may seize the phone, but not search its data without a warrant.

The automobile exception. With probable cause that a readily mobile vehicle holds contraband or evidence, police may search it on the spot. That reaches any container inside that could hold the object, including a passenger's bag. Two limits. It takes probable cause, not a hunch. And it does not reach a car parked in a home's curtilage.

Plain view lets officers seize an incriminating item without a warrant when three things line up. Lawful vantage point, the officer is legally where they are. Immediately apparent, probable cause it is contraband just by looking. And lawful right of access, the officer can reach it, not merely see it.

A cousin doctrine, plain feel, applies during a lawful weapons frisk. If an officer feels an object whose incriminating nature is immediately obvious from the pat-down, it may be seized. But he may not squeeze or manipulate it to work out what it is. Quick challenge. He keeps sliding the lump between his fingers until sure. In, or out? Out.

Consent. A warrantless search is valid if someone with authority voluntarily consents, judged on the totality of the circumstances. Police need not warn you that you may refuse. Someone with common authority can consent to shared areas, and consent holds even if officers were mistaken, so long as their belief was reasonable.

Now the wrinkle the exam loves. When two occupants are both present and one expressly objects while the other consents, the objection wins. But if the objector is gone, lawfully arrested and taken away, a remaining occupant's consent is valid. And consent has a scope. Look in my car for drugs reaches closed containers, not door panels.

Stop and frisk is really two moves, each with its own justification. On reasonable suspicion that criminal activity is afoot, an officer may briefly stop a person. Separately, on reasonable suspicion that the person is armed and presently dangerous, the officer may frisk for weapons. Suspicion to stop does not by itself authorize a frisk.

Hot pursuit. In immediate and continuous pursuit of a fleeing suspect from the scene of a crime, police may follow into a building, including a home. A suspect cannot defeat an arrest already in motion by ducking inside a doorway. But the modern limit is heavily tested. A suspected misdemeanant's flight does not automatically justify entry.

Exigent circumstances is the umbrella for genuine emergencies. Imminent destruction of evidence. Preventing escape or immediate danger. And emergency aid. The Supreme Court confirmed in 2026 that entering a home to render emergency aid needs only an objectively reasonable basis to believe an occupant is seriously injured. Not probable cause, because rescue is a public-safety function.

Two guardrails. Police may rely on an exigency they themselves triggered, so long as they did not create it by threatening to violate the Fourth Amendment. Knocking on a door and prompting occupants to destroy evidence is fine. And in drunk-driving cases, alcohol dissipation creates no automatic emergency.

Community caretaking supports some vehicle intrusions, like inventorying a car lawfully taken into custody. But here is the limit. It is not a freestanding exception that lets police walk into a home. To cross that threshold they need a real one. Emergency aid, another exigency, consent, or a warrant.

Now the second half. From your property to your body. Not every police encounter is a seizure. Officers who walk up and ask questions are having a consensual encounter, and you are free to walk away. A seizure happens in one of two ways.

The first is a show of authority to which the person submits. If an officer orders you to stop and a reasonable person would not feel free to leave, you are seized the moment you comply. Keep running, and you are not yet seized.

The second is physical force. Apply force to someone's body intending to restrain them, and they are seized at that instant, even if the contact is brief and even if they break free. A hand that grabs and slips is a seizure. The moment matters, because everything the officer needs must exist then.

Now the least intrusive seizure, the brief investigative stop, or Terry stop. It takes reasonable suspicion, and must last no longer than necessary to confirm or dispel it. Officers may not prolong a completed traffic stop to walk a drug dog around the car without independent suspicion.

An arrest is a full seizure and requires probable cause. Where it happens decides whether police also need a warrant. In a public place, none, even if officers had ample time to get one. Inside the suspect's own home, an arrest warrant plus reason to believe he is home. Inside someone else's home, a search warrant.

A word on authorities. This episode named one case, and only because the name is the doctrine. A Terry stop is just what everyone calls a brief investigative seizure. Every other rule here came to you nameless, and that is deliberate. This topic is starred, so you get no statute and no citation. Just a fact pattern and one question. Was it lawful?

If you keep only three things, keep these. The warrant checklist, because any one defect voids the whole thing. The exceptions list, because with no warrant that list is the entire analysis. And the two suspicion levels, because every rule in this topic asks which one applies.

Now the traps. One. Treating any arrest as unlocking a full car search. Once the arrestee is secured and the offense yields no evidence inside, that basis is gone. Two. Forgetting that police need a warrant to search the data on a seized phone. Three. Assuming the automobile exception lets officers onto a home's driveway. It does not.

Four. Overriding a physically present, objecting co-tenant with another occupant's consent. The present objector wins. Five. Thinking a fleeing misdemeanor suspect always justifies bursting into a home. That is now case by case. Six. Believing community caretaking is a blanket key to the home. It is not.

Seven. Calling it a seizure when the officer only yelled a command and the suspect kept running. A show of authority needs submission, though force with intent to restrain is a seizure even if the suspect escapes. Eight. Confusing the two suspicion levels. Reasonable suspicion will not carry a frisk without an added armed-and-dangerous belief, and never an arrest.

Time for the quick check, and this one comes straight from the BARGO question bank. An officer arrests a driver for driving with a suspended license, handcuffs her, and locks her in the patrol car. Nothing suggests the car holds evidence of that offense. The officer searches the passenger compartment and finds a handgun under the seat.

Was that lawful as a search incident to arrest? Option one. Yes, because any lawful arrest of a driver permits a full search of the passenger compartment. Option two. No, because she was secured and the car held no evidence of the offense of arrest. Option three. No, because a warrant is required once a driver has been arrested. Pause here if you want a moment.

The answer is option two. Only two things justify that search. An unsecured arrestee within reaching distance, or a reasonable belief the car holds evidence of the offense of arrest. She was handcuffed in the patrol car, and a suspended license generates no physical evidence to find inside. Both justifications failed.

Option one states the outdated automatic rule, which is exactly why it tempts you. An arrest no longer unlocks a full compartment search once the arrestee is secured. Option three overcorrects. A warrant is not always required, because either recognized basis would have justified this search. Neither existed here. There are thirty-plus more questions on this topic alone, each option explained like that.

Five things to take away. One. The warrant checklist. Probable cause on oath, a neutral and detached magistrate, and particularity. Any one defect sinks it. Two. Execution matters. Knock and announce unless it would be dangerous or futile, and search only where the described items could be.

Three. With no warrant, the government must fit a listed exception and meet its elements. Four. Watch the recent shifts. The secured arrestee, the phone data warrant, the curtilage limit, the fleeing misdemeanant, and emergency aid without probable cause.

Five. For a person, pin down the exact moment of seizure. Submission to a show of authority, or force applied with intent to restrain. Then match it to reasonable suspicion for a stop, or probable cause for an arrest. Which is why our garage warrant failed on the one requirement nobody checked. Next time, the Exclusionary Rule.

Practice this topic with more than 2,900 exam-style questions, free to start, at nextgenbargo.com. This episode is for education and exam preparation only, not legal advice, and we are not affiliated with or endorsed by the NCBE or any bar examining authority.