Conflict of laws is the set of rules or laws a jurisdiction applies to a case, transaction, or other occurrence that has connections to more than one jurisdiction. This body of law deals with three broad topics: jurisdiction, rules regarding when it is appropriate for a court to hear such a case; foreign judgments, dealing with the rules by which a court in one jurisdiction mandates compliance with a ruling of a court in another jurisdiction; and choice of law, which addresses the question of which substantive laws will be applied in such a case. These issues can arise in any private-law context, but they are especially prevalent in contract law and tort law.
Itar-Tass Russian News Agency v. Russian Kurier, Inc., 153 F.3d 82, was a copyright case about the Russian language weekly Russian Kurier in New York City that had copied and published various materials from Russian newspapers and news agency reports of Itar-TASS. The case was ultimately decided by the United States Court of Appeals for the Second Circuit. The decision was widely commented upon and the case is considered a landmark case because the court defined rules applicable in the U.S. on the extent to which the copyright laws of the country of origin or those of the U.S. apply in international disputes over copyright. The court held that to determine whether a claimant actually held the copyright on a work, the laws of the country of origin usually applied, but that to decide whether a copyright infringement had occurred and for possible remedies, the laws of the country where the infringement was claimed applied.
Lex loci rei sitae, or simply lex situs, is the doctrine that the law governing the transfer of title to property is dependent upon and varies with the location of the property, for the purposes of the conflict of laws. Conflict is the branch of public law regulating all lawsuits involving a "foreign" law element if a difference in result will occur, depending on which laws are applied.
Lex fori is a choice of law rule. If applicable, it provides that the law of the jurisdiction or venue in which a legal action is brought applies.
Choice of law is a procedural stage in the litigation of a case involving the conflict of laws when it is necessary to reconcile the differences between the laws of different legal jurisdictions, such as sovereign states, federated states, or provinces. The outcome of this process is potentially to require the courts of one jurisdiction to apply the law of a different jurisdiction in lawsuits arising from, say, family law, tort, or contract. The law which is applied is sometimes referred to as the "proper law." Dépeçage is an issue within choice of law.
In conflict of laws, renvoi is a subset of the choice of law rules and it may be applied whenever a forum court is directed to consider the law of another state.
Macmillan Inc v Bishopsgate Investment Trust plc [1995] EWCA Civ 55, [1996] WLR 387 is a judicial decision relating to English trusts law and conflict of laws case from the Court of Appeal. The issue arose in relation to frauds conducted by the late Robert Maxwell.
Characterisation, or characterization, in conflict of laws, is the second stage of the procedure to resolve a lawsuit that involves foreign law. The process is described in English law as Characterisation, or classification within the English judgments of the European Court of Justice. It is alternatively known as qualification in French law.
In the Roman conflict of laws, an incidental question is a legal issue that arises in connection with the major cause of action in a lawsuit. The forum court will have already decided that it has jurisdiction to hear the case and will be working through the next two stages of the conflict process, namely: characterisation and choice of law. For example, the court may classify the cause as "succession", but it notes that the plaintiff brings the claim for relief as the deceased's widow. Before the court can adjudicate on the main issue, it must first decide whether the plaintiff actually has the status claimed, i.e. the incidental question would be the validity of the claimed marriage. The inconvenient reality is that many lawsuits involve a number of interdependent legal issues. In purely domestic cases, this poses no difficulty because a judge will freely move from one domestic law to another to resolve the dispute. But in a conflict case, the question is whether the incidental question is resolved by reference either to its own choice of law rules, or to the same law that governs the main issue. States have not formulated a consistent answer to this question.
In the conflict of laws, the validity and effect of a contract with one or more foreign law elements will be decided by reference to the so-called "proper law" of the contract.
In conflict of laws, the choice of law rules for tort are intended to select the lex causae by which to determine the nature and scope of the judicial remedy to claim damages for loss or damage suffered.
In conflict of laws, the term lex loci is a shorthand version of the choice of law rules that determine the lex causae.
In modern society, the role of marriage and its termination through divorce have become political issues. As people live increasingly mobile lives, the conflict of laws and its choice of law rules are highly relevant to determine:
Conflict of marriage laws is the conflict of laws with respect to marriage in different jurisdictions. When marriage-related issues arise between couples with diverse backgrounds, questions as to which legal systems and norms should be applied to the relationship naturally follow with various potentially applicable systems frequently conflicting with one another.
Lex causae, in conflict of laws, is the law chosen by the forum court from the relevant legal systems when it judges an international or interjurisdictional case. It refers to the usage of particular local laws as the basis or "cause" for the ruling, which would itself become part of referenced legal canon.
In the conflict of laws, the lex loci contractus is the Latin term for "law of the place where the contract is made".
Lex loci solutionis, in conflict of laws, is the law applied in the place of an event.
The lex loci delicti commissi or lex loci delictus is the Latin term for "law of the place where the delict [tort] was committed" in the conflict of laws. Conflict of laws is the branch of law regulating all lawsuits involving a "foreign" law element where a difference in result will occur depending on which laws are applied.
The lex loci arbitri is the Latin term for "law of the place where arbitration is to take place" in the conflict of laws. Conflict is the branch of public law regulating all lawsuits involving a "foreign" law element where a difference in result will occur depending on which laws are applied.
Boys v Chaplin [1971] AC 356 is a leading conflict of laws case decided by the House of Lords.
