In common law jurisdictions, a preliminary hearing, preliminary examination, preliminary inquiry, evidentiary hearing or probable cause hearing is a proceeding, after a criminal complaint has been filed by the prosecutor, to determine whether there is enough evidence to require a trial. At such a hearing, the defendant may be assisted by a lawyer.
The Fourth Amendment to the United States Constitution is part of the Bill of Rights. It prohibits unreasonable searches and seizures and sets requirements for issuing warrants: warrants must be issued by a judge or magistrate, justified by probable cause, supported by oath or affirmation, and must particularly describe the place to be searched and the persons or things to be seized.
In a legal dispute, one party has the burden of proof to show that they are correct, while the other party has no such burden and is presumed to be correct. The burden of proof requires a party to produce evidence to establish the truth of facts needed to satisfy all the required legal elements of the dispute.
In United States criminal law, probable cause is the legal standard by which police authorities have reason to obtain a warrant for the arrest of a suspected criminal and for a court's issuing of a search warrant. One definition of the standard derives from the U.S. Supreme Court decision in the case of Beck v. Ohio (1964), that probable cause exists when “at [the moment of arrest] the facts and circumstances within [the] knowledge [of the police], and of which they had reasonably trustworthy information, [are] sufficient to warrant a prudent [person] in believing that [a suspect] had committed or was committing an offense.”
Hartman v. Moore, 547 U.S. 250 (2006), is a decision by the Supreme Court of the United States involving the pleading standard for retaliatory prosecution claims against government officials. After a successful lobbying attempt by the CEO of a manufacturing company against competing devices that the US Postal Service supported, the CEO found himself the target of an investigation by US postal inspectors and a criminal prosecution that was dismissed for lack of evidence. The CEO then filed suit against the inspectors and other government officials for seeking to prosecute him in retaliation for exercising his First Amendment rights to criticize postal policy. The Court ruled 5-2 that to prove that the prosecution was caused by a retaliatory motive, the plaintiff bringing such a claim must allege and prove that the criminal charges were brought without probable cause.
Consent searches are searches conducted by United States law enforcement after obtaining the voluntary consent of the person being investigated. In some cases, consent may also be obtained from certain third-parties. Searches that are the product of consent are one of several recognized exceptions to the warrant requirement of the Fourth Amendment to the United States Constitution. The prosecution bears the burden of proving that consent was freely and voluntarily given. Courts look to the totality of the circumstances to determine whether consent was freely and voluntarily given.
United States v. Patane, 542 U.S. 630 (2004), was a United States Supreme Court case relating to Miranda warnings.
Maryland v. Pringle, 540 U.S. 366 (2003), was a decision by the Supreme Court of the United States in which the Court unanimously upheld the arrest of three passengers in an automobile where drugs were found. The case regards the reasonableness of the arrest of a passenger in an automobile.
United States v. Ortiz, 422 U.S. 891 (1975), was a United States Supreme Court case in which the Court held that the Fourth Amendment prevented Border Patrol officers from conducting warrantless, suspicionless searches of private vehicles removed from the border or its functional equivalent.
Brinegar v. United States, 338 U.S. 160 (1949), was a United States Supreme Court case employing the "reasonableness test" in warrantless searches. The Court held that while the police need not always be factually correct in conducting a warrantless search, such a search must always be reasonable.
Whren v. United States, 517 U.S. 806 (1996), was a unanimous United States Supreme Court decision that "declared that any traffic offense committed by a driver was a legitimate legal basis for a stop."
County of Riverside v. McLaughlin, 500 U.S. 44 (1991), was a United States Supreme Court case which involved the question of within what period of time must a suspect arrested without a warrant be brought into court to determine if there is probable cause for holding the suspect in custody. The majority held that suspects must generally be granted a probable cause determination within 48 hours of arrest. The dissent believed that probable cause hearings should generally be provided much sooner, as soon as the police complete the administrative steps incident to arrest.
District of Columbia v. Wesby, 583 U.S. 48 (2018), was a United States Supreme Court case in which the Court held that police officers had probable cause to arrest those attending a party in Washington, D.C.
Nieves v. Bartlett, 587 U.S. 391 (2019), was a civil rights case in which the Supreme Court of the United States decided that probable cause should generally defeat a retaliatory arrest claim brought under the First Amendment, unless officers under the circumstances would typically exercise their discretion not to make an arrest.
Lozman v. City of Riviera Beach, 585 U.S. ___ (2018), is a case in which the United States Supreme Court decided that the mere existence of probable cause for an arrest did not bar the plaintiff's First Amendment retaliatory arrest claim, but deferred consideration of the broader question of when it might. The case concerned a 42 U.S.C. § 1983 lawsuit filed against Riviera Beach by Fane Lozman, who had been arrested while criticizing local politicians during the public comments section of a City Council meeting. The city argued that under Hartman v. Moore he could not sue for retaliation, as they had probable cause to arrest him for the offense of disturbing a lawful assembly. Lozman conceded that they had probable cause, but argued that Hartman, a case about retaliatory prosecutions, did not extend to retaliatory arrests, and that instead Mt. Healthy City School District Board of Education v. Doyle allowed his suit.
The "special needs" exception is an exception to the Fourth Amendment’s general requirement that government searches be supported by a warrant and probable cause. The exception applies when (1) the government conducts programmatic searches that are primarily aimed at advancing some special need other than criminal law enforcement, and (2) the government’s search program is reasonable given the balance of public and private interests.
Devenpeck v. Alford, 543 U.S. 146 (2004), was a United States Supreme Court decision dealing with warrantless arrests and the Fourth Amendment. The Court ruled that even if an officer wrongly arrests a suspect for one crime, the arrest may still be "reasonable" if there is objectively probable cause to believe that the suspect is involved in a different crime.
A retaliatory arrest or retaliatory prosecution occurs when law enforcement or prosecutorial actions are initiated in response to an individual’s exercise of their civil rights, such as freedom of speech or assembly. These actions are considered forms of misconduct, as they aim to punish individuals for engaging in constitutionally protected activities.
The Supreme Court of the United States handed down five per curiam opinions during its 2023 term, which began October 2, 2023, and concluded on October 6, 2024.
Gonzalez v. Trevino, 602 U.S. 653 (2024), is a United States Supreme Court case relating to Nieves v. Bartlett.
