What jurisdiction do custom officers have?

Customs officers have jurisdiction primarily over the enforcement of laws and regulations related to the import and export of goods across national borders. Their authority typically includes inspecting cargo, collecting duties and taxes, and preventing the smuggling of prohibited items. They operate under the laws of the country they serve, often collaborating with other law enforcement agencies to ensure compliance with trade regulations and security measures. Their jurisdiction can extend to various modes of transportation, including air, sea, and land.