; (2) be responsible for surge support and physical protection of borders, ports, strategic depots, hubs, and key commodities, such as basic foodstuffs, gasoline, diesel, and other strategic goods, in that country; (3) under the authority of officials in that country, carry out non-investigative customs functions, such as— (A) ensuring the effective continuity of port operations; (B) facilitating legitimate trade and commerce; and (C) detecting and interdicting customs violations, such as illicit smuggling of contraband; (4) when cross-border violations of law are identified, notify and coordinate directly with customs and other law enforcement and security agencies in that country that are responsible for conducting investigations of illicit cross-border smuggling offenses; (5) refer cross-border violations of law to the Transnational Criminal Investigative Units of Homeland Security Investigations; and (6) carry out any other duties identified by the Commissioner. (d) Transnational Criminal Investigative Units The Secretary of Homeland Security, acting through the Executive Associate Director of Homeland Security Investigations, shall establish Transnational Criminal Investigative Units in each Americas partner country. (e) Training and equipment To the extent authorized under existing provisions of law, the Commissioner may provide to an Americas partner country selected under subsection (b) training, oversight, equipment, and remuneration from U.S. Customs and Border Protection for the purposes specified in subsection (c) to provide lethal and non-lethal assistance, such as training and equipment, including personal protective equipment, armored vehicles, and weapons, to entities that are— (1) identified by the local customs offices in that country; (2) coordinated and deconflicted through the law enforcement working group of the United States Embassy in that country