Considering the text below as a historical account on the extinct United States Custom Service, whose activities are nowadays carried out by the U.S. Customs and Border Control, answer question.

The agency known as the United States Customs Service collects the revenue from imports and enforces customs and related laws and alsoadministers the Tariff Act of 1930, as amended, and other customs laws. Some of the responsibilities which the Customs Service is specifically charged with are as follows: properly assessing and collecting customs duties, excise taxes, fees, and penalties due on imported merchandise; interdicting and seizing contraband, including narcotics and illegal drugs; processing persons, carriers, cargo, and mail into and out of the United States; administering certain navigation laws; detecting and apprehending persons engaged in fraudulent practices designed to circumvent customs and related laws; protecting American business and labor by enforcing statutes and regulations such as the Anti-dumping Act and those regarding countervailing duties.

(Source: Henry Campbell Black. Customs Service.

Black’s Law Dictionary. 6th Edition. St. Paul (MINN.), West Publishing: 1990. p. 386. Adapted)

Regarding the words and expressions underlined in the text: