La Aduana: Spain's Customs Service

La Aduana is Spain's customs authority, under the Ministry of Finance. Core duties:

• Collect import duties/taxes
• Enforce customs law
• Control cross-border goods movement
• Issue import/export licenses
• Investigate/prosecute customs fraud

Headquartered in Madrid with offices at all major ports/airports; ~10,000 staff. It secures billions in annual revenue and protects the economy from illicit trade.