Evade tariffs. Customs empty boxes are interpreted as: some lawless elements evade customs duties by carrying empty boxes filled with luxury goods, because empty boxes do not need to pay taxes. A state administrative organ that exercises the functions and powers of import and export supervision and administration according to the laws and administrative regulations of the host country (or region). The word "customs" in English originally refers to a local tax paid by businessmen on the way to trafficking goods, which has the nature of "tolls" or "tolls" and "user fees" for ports and markets.