Searches, warrants and the exclusionary rule
What counts as a search, standing, warrants and their execution, every major warrant exception, and the exclusionary rule and its exceptions, under the Fourth Amendment and the Supreme Court cases officers must know.
Required for Class A Class B Class C Class D Class F
The exam draws 30 questions from a bank of 60. You have 45 minutes, and you need 80% to pass. Questions apply the law to situations. To prepare, read this guide alongside the cited sections of the San Andreas codes, the 2026 Law Enforcement Reform Package and the federal authorities below. The U.S. Constitution binds every San Andreas officer. Supreme Court decisions are binding; federal circuit decisions are accepted authority, and where circuits differ the academy teaches the rule that protects rights more.
A Fourth Amendment search happens in two ways. Under Katz v. United States, the Amendment protects a person's reasonable expectation of privacy, not only places, so government intrusion into a privacy expectation society accepts as reasonable is a search. Under United States v. Jones, a physical intrusion on a protected area or item to gather information is also a search: attaching a GPS tracker to a vehicle and monitoring it is a search. Technology and trained animals can make something a search that looks harmless. Using sense-enhancing technology not in general public use, such as a thermal imager, to learn details inside a home is a search (Kyllo v. United States). Bringing a drug dog onto a home's front porch to sniff is a search of the curtilage (Florida v. Jardines), even though a dog sniff of a car during a lawful traffic stop that does not prolong it is not (Illinois v. Caballes). Physically squeezing a passenger's soft luggage to explore its contents is a search (Bond v. United States): people expect others to handle their bags, not to feel them for contraband.
Some places and things carry no Fourth Amendment protection. Trash left at the curb for collection carries no reasonable expectation of privacy (California v. Greenwood). Open fields are not protected, even if fenced or posted (Oliver v. United States); entering one may raise other questions, but it is not a Fourth Amendment search. The curtilage, the area immediately around a home that is treated as part of it, is protected like the home itself. Whether an area is curtilage is judged by its proximity to the home, whether it is enclosed with the home, how it is used and the steps taken to shield it from view (United States v. Dunn). The automobile exception does not allow officers to enter a home's curtilage to search a vehicle parked there (Collins v. Virginia). Officers, like any visitor, may walk the ordinary path to the front door to knock, but bringing a dog or prowling the side yard goes beyond that implied invitation. Your vantage point is everything: what you see from a lawful place is not a search, and what you see after an unlawful entry is fruit of it.
Digital data needs a warrant more often than recruits expect. Obtaining historical cell-site location records generally requires a warrant (Carpenter v. United States), even though a phone company holds them. Police generally need a warrant to search the digital contents of a phone seized incident to arrest (Riley v. California); you may seize and secure the phone, and keep it from being wiped, but you get a warrant before you scroll. The same caution applies to tracking devices (Jones). Write warrant applications for digital evidence with care: name the device, the account or records sought, the offense, and why evidence of it will be there. Standing comes next, because only a person whose own rights were violated may seek suppression. A passenger with no property or possessory interest in a car generally cannot challenge a search of it (Rakas v. Illinois), although every passenger is seized by a stop and may challenge the stop itself (Brendlin v. California). An overnight guest has a reasonable expectation of privacy in the host's home (Minnesota v. Olson). A driver in lawful possession of a rental car has privacy in it even if he is not listed on the rental agreement (Byrd v. United States).
A warrant must be issued by a neutral and detached magistrate, not by a prosecutor, a police supervisor or any other law-enforcement official (Coolidge v. New Hampshire). In San Andreas, warrant applications go to a judge through JusticeLink. The judge asks whether the sworn affidavit shows a fair probability, on the totality of the circumstances, that evidence of a crime will be found in the place described; a tip's veracity, reliability and basis of knowledge are weighed together (Illinois v. Gates). The affidavit must be true. A warrant fails if the affiant knowingly or recklessly included a false statement that was necessary to probable cause (Franks v. Delaware); an honest mistake by the affiant, or an informant's lie the affiant had no reason to suspect, is not a Franks violation. Knowingly filing an affidavit containing materially false statements is also a 3rd Degree Felony (SAPC §38.81). The warrant itself must particularly describe the place and the things to be seized. A warrant that fails to describe the items is invalid on its face, even if the application did (Groh v. Ramirez). An officer who applies for a warrant is not immune if a reasonably well-trained officer would know the affidavit failed to show probable cause (Malley v. Briggs); a judge's signature does not cure a bare-bones affidavit.
Executing the warrant has its own rules. The knock-and-announce rule is part of Fourth Amendment reasonableness (Wilson v. Arkansas): officers knock, identify themselves and their purpose, and give the occupants a reasonable chance to open the door before forcing it. There is no blanket exception for a category of crime, such as all drug cases; a no-knock entry needs reasonable suspicion, in the particular case, that knocking would be dangerous, futile or would allow evidence to be destroyed (Richards v. Wisconsin). A warrant to search for contraband carries limited authority to detain the occupants while the search is conducted (Michigan v. Summers), but that power is limited to the immediate vicinity of the premises (Bailey v. United States); a resident who has already driven away must be stopped, if at all, on some other basis. Handcuffing an occupant during a high-risk warrant search can be reasonable (Muehler v. Mena), but a premises warrant does not authorize frisking everyone present without individualized suspicion (Ybarra v. Illinois). The search may extend only to places where the listed items could be found, and it ends once they are found: a warrant for a stolen all-terrain vehicle does not let you open a jewelry box.
A search incident to a lawful arrest covers the arrestee's person and the area within his immediate control, from which he might grab a weapon or destroy evidence (Chimel v. California); it does not cover the rest of the house. A full search of the person is allowed incident to any lawful custodial arrest, without separate justification and whatever the offense (United States v. Robinson). The search must be incident to a custodial arrest that actually happens; issuing a citation and releasing the person does not trigger it. A vehicle may be searched incident to arrest only if the arrestee is unsecured and within reaching distance of the passenger compartment, or it is reasonable to believe evidence of the offense of arrest is inside (Arizona v. Gant). An arrest for driving on a suspended licence gives no reason to expect evidence in the car; an arrest for selling drugs from the driver's window may. The digital contents of a phone found on the arrestee need a warrant (Riley v. California). A breath test, but not a blood test, may be required as a search incident to a drunk-driving arrest (Birchfield v. North Dakota).
The automobile exception lets officers search a vehicle without a warrant when they have probable cause that it contains contraband or evidence (Carroll v. United States). They may search any container in the vehicle where they have probable cause the evidence may be found (California v. Acevedo), so the scope follows the probable cause: probable cause that a stolen television is in the car does not reach a pill bottle, and probable cause limited to one bag in the trunk supports a search of that bag, not the whole car. With probable cause to search a car, officers may search passengers' belongings capable of holding the object of the search (Wyoming v. Houghton). The exception does not allow entering a home's curtilage to reach a vehicle (Collins v. Virginia). An inventory is different: it is not a search for evidence. A routine inventory of a lawfully impounded vehicle is reasonable (South Dakota v. Opperman) when done under standardized criteria and not in bad faith for investigation (Colorado v. Bertine), and opening closed containers during an inventory requires a standardized policy covering them (Florida v. Wells). Impound itself needs lawful grounds, such as the mandatory and discretionary grounds in SAAC §10.01 and §10.02.
Consent must be voluntary under the totality of the circumstances; knowledge of the right to refuse is a factor, not a requirement (Schneckloth v. Bustamonte), and officers need not tell people they may refuse (United States v. Drayton). Acquiescence to a claim of lawful authority, such as 'I have a warrant', is not consent (Bumper v. North Carolina); if you claim a warrant you do not have, any 'consent' that follows is worthless and the claim itself is a lie. The scope of consent is what a reasonable person would understand from the exchange between officer and suspect (Florida v. Jimeno): consent to search a car for drugs reasonably includes closed containers that could hold drugs, and the person may limit the scope or withdraw consent at any time. A search is valid when officers reasonably, even if mistakenly, believe the consenting person has authority over the premises (Illinois v. Rodriguez), but they must ask questions when the facts make authority doubtful. A physically present co-occupant's express refusal overrides another occupant's consent to search the shared home (Georgia v. Randolph). An objector who has been lawfully removed, for example by arrest, does not defeat a remaining occupant's later consent (Fernandez v. California).
Plain view allows a warrantless seizure when three things are true: the officer is at a lawful vantage point, has lawful access to the object, and its incriminating character is immediately apparent. Discovery need not be inadvertent; an officer who expects to find an item may still seize it in plain view during a lawful search for something else (Horton v. California). Moving an item to see something that is not already visible, such as turning over a stereo to read its serial number, is a search requiring probable cause (Arizona v. Hicks). The same idea applies to touch during a lawful frisk: an object whose contraband nature is immediately apparent by touch may be seized, but it may not be manipulated to find out (Minnesota v. Dickerson). If you reached your vantage point unlawfully, for example by stepping into a fenced back yard that is curtilage without a warrant or exigency, nothing you see from there is in plain view. Describe your exact position in the report, because the defense will ask.
Exigency and emergency aid are real exceptions, but each needs facts. Officers in hot pursuit of an armed robber may enter and search a house for the suspect and weapons (Warden v. Hayden), and a suspect who retreats from a public doorway into the house on a felony may be followed (United States v. Santana). Officers may enter a home without a warrant on an objectively reasonable basis to believe an occupant is seriously injured or imminently threatened (Brigham City v. Stuart); they need only an objectively reasonable basis to believe someone inside needs immediate aid, not proof of serious injury (Michigan v. Fisher). Exigency is not defeated by police conduct that does not violate or threaten to violate the Fourth Amendment (Kentucky v. King): knocking and announcing at a door is lawful, and if occupants then begin destroying evidence the exigency is real. The gravity of the offense matters, and a minor offense rarely justifies warrantless home entry (Welsh v. Wisconsin); a minor collision investigation did not justify entering a home to check the driver's sobriety (Hopkins v. Bonvicino). With probable cause, officers may take limited steps to preserve evanescent evidence on a suspect, such as fingernail scrapings (Cupp v. Murphy).
Community caretaking is narrower than its name. Officers performing community caretaking duties with vehicles, such as dealing with a wrecked or disabled car apart from any criminal investigation, may act reasonably without a warrant (Cady v. Dombrowski). There is no community caretaking exception allowing warrantless entry into a home (Caniglia v. Strom); to enter a home you need a warrant, consent, or a genuine emergency under Brigham City. A welfare concern about someone who is not in immediate danger is handled by knocking, calling, contacting family or seeking a crisis evaluation, not by forcing the door. Incident to an in-home arrest, officers may look in closets and other spaces immediately adjoining the place of arrest from which an attack could be launched, without any further suspicion. Sweeping further into the house is allowed only on articulable facts that a dangerous person is there, and the sweep is a quick look where a person could hide, not a full search (Maryland v. Buie). A sweep does not let you open drawers or look in small boxes.
Evidence obtained in violation of the Fourth Amendment is excluded in state prosecutions (Mapp v. Ohio), and so is evidence derived from it, the fruit of the poisonous tree, unless the connection is sufficiently attenuated (Wong Sun v. United States). Miranda warnings alone do not purge the taint of an illegal arrest from a later confession (Brown v. Illinois). The exceptions are narrow and fact-bound. Evidence is not excluded when officers reasonably rely on a warrant later found invalid, unless the affidavit was false or plainly lacking (United States v. Leon). Isolated negligent recordkeeping errors by police do not trigger exclusion, though deliberate, reckless or systemic errors may (Herring v. United States). Evidence is admissible if it would inevitably have been discovered by lawful means (Nix v. Williams), or if it was obtained through a genuinely independent lawful source (Murray v. United States). Discovery of a valid pre-existing warrant can attenuate evidence found after an unlawful stop (Utah v. Strieff). None of these exceptions makes the original violation lawful, and a deliberate violation exposes the officer to SAPC §38.82 and §38.74 and to suit under 42 U.S.C. § 1983.
People under community supervision have reduced, not absent, privacy. A probationer subject to a search condition may be searched on reasonable suspicion (United States v. Knights). A parolee who accepted a search condition may be searched without suspicion (Samson v. California). Before relying on either, confirm through records that the person is actually on supervision, which kind, and that a search condition applies; a probationer is not a parolee, and Knights by itself supports a search only on reasonable suspicion. A supervision search is still limited by its purpose and must not be arbitrary or harassing. Possessing a prohibited item in violation of a supervision condition can be SAPC §42F.04, and ceasing contact to avoid supervision is §42F.01. Throughout this module the same habit applies: before you search, name the exception, the facts that satisfy each element, and the limits on scope, and write them in the report exactly as they happened. A search justified after the fact by an invented exception is both inadmissible and, if the report is false, a crime (SAPC §38.81).
Constitution and case law
The federal authorities this module's questions rely on, and the rule the academy takes from each.
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