Updated September 2026 | The Bulldog Law | California Criminal Defense
Exigent circumstances are emergencies that excuse the warrant requirement: an officer may enter a home without a warrant to help someone who appears to be seriously hurt or in danger, to stop a suspect who is actively fleeing, to prevent the imminent destruction of evidence, or to address an immediate threat to officers or the public. The entry has to be limited to the emergency, the emergency has to be real and not manufactured, and the prosecution bears the burden of proving it existed. Two cases with California in the name have narrowed the doctrine in the last few years: Lange v. California, which ended automatic hot-pursuit entries for misdemeanors, and People v. Ovieda, in which the state Supreme Court rejected warrantless home entries for community caretaking or welfare checks without a genuine emergency.
The Bulldog Law's defense attorneys see warrantless home entries most often in three kinds of cases: domestic violence calls, drug cases that began as a knock on the door, and DUI cases where officers followed a driver into a garage. In each one, the question is the same. Was there an emergency, or did the officer decide the house was easier than the warrant? When the answer is the second one, the case usually ends at the suppression hearing. Here is how the doctrine works, where its edges are, and what to do when officers are at the door. If they've already been inside, call (888) 928-1609 or message our team.
The home is different
Fourth Amendment law treats the home as the place where the warrant requirement is strongest. Police may stop a person on the street on reasonable suspicion, search a car on probable cause, and seize what's in plain view from a public sidewalk. The threshold of a house is a different line. Without a warrant, or consent, or an exigency, an officer who steps across it has conducted an unreasonable search, and the fact that he found something inside doesn't cure it. California's Constitution, in Article I, section 13, says the same thing, and California courts have at times read it more protectively than the federal courts.
The protection extends to the curtilage, the area immediately around the home that people treat as private: the backyard, the porch beyond the walkway a visitor would use, the attached garage, a fenced side yard. The U.S. Supreme Court has held that walking a drug dog onto a front porch is a search, and that an officer may not walk up a driveway to peer under a tarp at a motorcycle parked beside the house. The warrant statutes and the grounds for a search warrant under Penal Code 1524 exist precisely because the easy route into a house is supposed to be closed.
Arrests inside a home follow the same rule. Under Payton v. New York, officers need an arrest warrant to enter a suspect's home to arrest him, which in California means a Ramey warrant issued on probable cause under Penal Code 817. Knocking, being refused, and walking in to make the arrest anyway is a Payton violation unless an exigency exists at that moment.
The recognized emergencies
Emergency aid
Officers may enter without a warrant when they have an objectively reasonable basis to believe a person inside is seriously injured or imminently threatened with injury. The classic facts: screams and the sound of a fight through the window, a 911 hang-up with a child crying in the background, blood on the doorstep, an overdose reported by a roommate. The standard is objective, which cuts both ways: officers don't need to be certain, but they do need facts, not a feeling. And the entry is limited to the aid. Officers who enter to check on a person and find her fine may not then open drawers. This is the exception that comes up in nearly every domestic violence case that began with a neighbor's call, and it is usually valid at the threshold and invalid three rooms later.
Hot pursuit
An officer chasing a suspect from a public place may follow him into a home to complete an arrest that began outside. For a fleeing felon that rule is generous. For misdemeanors it is not, since 2021. In Lange v. California, a Sonoma County driver playing loud music with his window down failed to stop for a CHP officer, drove a few hundred feet into his own garage, and was followed in and arrested for DUI. The state argued that pursuit of any offender, including a misdemeanant, categorically justified entry. The Supreme Court unanimously rejected it. Pursuit of a suspected misdemeanant is not, by itself, an exigency; officers need a case-specific reason, an actual risk of harm, escape, or destruction of evidence, before crossing into the home. Our DUI attorneys have relied on Lange in exactly the fact pattern it arose from: a driver who pulled into a driveway and an officer who walked into the garage.
Destruction of evidence
Officers who reasonably believe evidence is about to be destroyed, the toilet flushing, the sound of movement after a knock announcing police, may enter to prevent it. The Supreme Court held in Kentucky v. King that police may rely on an exigency they themselves triggered by knocking, as long as they did not create it by violating or threatening to violate the Fourth Amendment. In practice this exception is argued in drug cases more than any other, and it lives or dies on what the officers actually heard and saw, which the bodycam usually settles. Speculation that a drug dealer might destroy drugs is not an exigency; the sound of a dealer destroying drugs can be.
A related fight plays out in DUI cases over blood. Alcohol dissipates from the bloodstream over time, and for decades prosecutors argued that this natural fact created an automatic exigency for a warrantless blood draw. The Supreme Court ended that in Missouri v. McNeely: dissipation alone is not an exigency, and officers generally must get a warrant for a nonconsensual blood draw, which telephonic warrants make fast. Our page on refusing a chemical test covers how California's implied consent law interacts with that rule.
Danger and escape
Entry is also permitted to prevent a suspect's imminent escape or to address an immediate threat to officers or others: an armed suspect who just fired shots, a report of a person with a gun inside a home threatening family. Once inside, officers may conduct a protective sweep, a quick look through spaces where a person could be hiding, if they have reason to believe someone dangerous is present. A protective sweep is not a search of closets and drawers, and evidence found in a drawer during a sweep is suppressible. These entries show up in firearm prosecutions, and the sweep's scope is frequently the whole case.
What is not an exigency
Community caretaking. Until 2019, California police relied on a line of state cases allowing entry into a home on a community caretaking rationale, a general concern for welfare short of a true emergency. In People v. Ovieda, the California Supreme Court overruled those cases: a warrantless home entry requires an exigency, and a generalized welfare concern is not one. The U.S. Supreme Court reached the same result for the whole country two years later in Caniglia v. Strom. A welfare check now requires an objectively reasonable belief that someone inside is in real, present danger; otherwise the officers wait outside and get a warrant, or leave.
Convenience. The unavailability of a judge at 2 a.m. is not an exigency in a state with telephonic and electronic warrants. Neither is the officer's belief that a suspect probably won't consent. Neither is the passage of time in a case where officers had hours to seek a warrant and chose not to.
A refusal. Declining to open the door, declining to consent, and declining to answer questions are rights, not suspicious conduct, and none of them creates an exigency. A person who exercises them and then finds officers inside has a suppression motion.
Consent: the exception that swallows the others
Most warrantless home entries are justified not by exigency but by consent, because officers ask and people say yes. Consent must be voluntary, which courts judge from the whole situation, and it can be limited or withdrawn. Anyone with common authority over the space can give it, a roommate for shared areas, not for a locked bedroom that isn't theirs. Two California-origin rules matter for shared homes. Under Georgia v. Randolph, when two occupants are present and one objects, the objection wins. Under Fernandez v. California, if the objecting occupant is lawfully removed, by arrest, for example, the remaining occupant's consent is valid. Officers know both rules, which is why the objecting party is sometimes arrested first. The practical advice from our attorneys is the same in every scenario: state clearly that you do not consent, and make sure any other adult in the home knows to say the same thing.
How an illegal entry ends a case
Because a warrantless entry is presumptively unreasonable, the prosecution has to prove the exception at a hearing under Penal Code 1538.5. The officer testifies to the facts that supposedly created the emergency, and the defense cross-examines with the bodycam, the CAD log, the 911 recording, and the timeline. If the exigency fails, everything that followed the entry is excluded: the drugs, the gun, the statements, the consent to search that was given after officers were already inside. In a possession case there is often nothing left, and the prosecution dismisses. Our list of signs a criminal case is weak starts with a questionable stop; a questionable entry is the same sign, larger.
Statements made after an illegal entry have two layers of protection, since Miranda applies once a person is in custody and the entry taint applies regardless. For non-citizens, the motion matters twice over, because suppressing the evidence may prevent the conviction that would otherwise trigger immigration consequences.
At the door
Our attorneys give clients a short script for the moment police knock without a warrant. Don't open the door wide; talk through it, or step out and pull it closed behind you, so that nothing inside is in plain view. Ask whether they have a warrant. If they don't, say: I do not consent to you entering or searching. If they say it's an emergency, ask what the emergency is, and remember the answer. Do not lie, do not run, and do not physically resist an entry; an officer who comes in unlawfully has given you a motion, and a person who shoves him has given the prosecutor a resisting charge that survives the motion. If a family member is in genuine danger inside, none of this applies; let them in, and read our page on when the law protects people who help in emergencies. Afterward, write down every detail while it's fresh, and call a lawyer before you talk to anyone else.
Frequently asked questions
What are exigent circumstances in simple terms?
An emergency that makes getting a warrant unreasonable. The law recognizes a few kinds: someone inside needs immediate help, a suspect is actively fleeing, evidence is about to be destroyed, or there's an imminent danger to officers or the public. If one of those is genuinely present, police may enter a home without a warrant, but only to deal with the emergency, and the prosecution has to prove afterward that the emergency was real.
Can police enter your home without a warrant in California?
Only with consent from someone with authority to give it, or under an exigent circumstance, or in a few narrow situations like a valid arrest warrant for a person who lives there. Absent those, the home is the most protected place in Fourth Amendment law. California's Supreme Court went further than federal courts in 2019 and rejected the idea that police can enter a home for general community caretaking or welfare-check reasons without a true emergency.
Does hot pursuit always let police follow someone into a house?
No, and the case that settled it came from California. In Lange v. California, decided in 2021, the U.S. Supreme Court held that pursuing someone suspected of a misdemeanor does not automatically justify entering their home. Officers need an actual exigency in the specific case, such as a risk of violence or destruction of evidence. Pursuit of a fleeing felon is treated more generously, but even there the entry has to be reasonable.
Can police come in on a welfare check?
Only if they have an objectively reasonable basis to believe someone inside is seriously injured or in imminent danger. A neighbor's vague concern, an unanswered phone, or a request from a relative who lives out of state is usually not enough on its own. If officers do enter on a welfare check and find nothing wrong, they cannot then wander the house; and if they enter without a real emergency and find contraband, our attorneys move to suppress it.
What should I do if police are at my door without a warrant?
Talk through the door or step outside and close it behind you. Ask whether they have a warrant. Say clearly that you do not consent to any entry or search. Do not physically block or resist an officer who comes in anyway; that becomes a separate charge. Note the time, what they said, and what they did, and call a lawyer as soon as they leave. If they had a warrant, ask to see it and read what it authorizes.
Related reading from our attorneys
- Reasonable suspicion vs. probable cause: stops, detentions, and car searches
- Search warrants under Penal Code 1524 and how to challenge them
- What is a Ramey warrant?
Police came in without a warrant? That's where our defense starts
The Bulldog Law's defense attorneys litigate warrantless entry and exigent circumstances motions in courts across California, in domestic violence, drug, firearm, and DUI cases, and handle the immigration analysis in-house. Visit our criminal defense page, call (888) 928-1609, or reach us online. Tell us what happened at the door; it's often the most important part of the case.