How does conflict of laws determine which court can hear an international case?

In the context of conflict of laws, determining which court has jurisdiction to adjudicate an international case is the first essential step in resolving legal disputes that span multiple countries.1

Determining Jurisdiction

While a plaintiff typically initiates a case by choosing where to file, the court’s authority to hear the matter is governed by several factors:

• Statutory and Constitutional Limits: A court's power is generally defined by statute and may be further constrained by constitutional provisions—such as the due process clause in the United States—to protect defendants from unreasonable burdens.2
• Party Consent: Most legal systems allow parties to agree on a specific court to hear their case, either through an express contract provision or by conduct, such as when a defendant appears in court and begins to litigate without objecting to jurisdiction.2
• Forum Non Conveniens: In many common-law countries, courts may decline to exercise jurisdiction even if they technically possess it. Under the doctrine of forum non conveniens ("inconvenient forum"), a court may dismiss a case if it determines that the forum is inappropriate—for example, if the litigation has no connection to the country or if the court is being used to gain unfair procedural advantages (forum shopping).32
• Civil-Law Distinctions: Unlike common-law jurisdictions, many civil-law countries generally do not dismiss actions based on forum non conveniens, often adhering to binding regulations that allocate jurisdiction among national courts.2

Ultimately, each country establishes its own rules for determining the jurisdiction of its courts to entertain civil suits.2