; and (10) work with Ukrainian authorities to ensure that law enforcement officials stationed at major border crossing points in Ukraine during a refugee crisis are appropriately trained to prevent human trafficking and support other measures to monitor for indications of human trafficking targeting refugees in areas surrounding border crossings. 4. Sanctions authority (a) Authority The President may impose the sanctions described in subsection (b) with respect to any foreign person that the President, or Secretary of the Treasury (in consultation with the Secretary of State), determines is responsible for engaging in, or facilitating, any of the following: (1) The forced displacement, including mass abduction of Ukrainian children to Russia or Russian-controlled areas of Ukraine. (2) The illegal forced assimilation, adoption, or placement in a foster home of Ukrainian children. (3) Involvement of any form in the trafficking of Ukrainians in Ukraine or Ukrainian refugees. (b) Sanctions described The sanctions described in this subsection are the following: (1) Blocking of property The blocking, in accordance with the International Emergency Economic Powers Act ( 50 U.S.C. 1701 et seq. ), of all transactions in all property and interests in property of a foreign person described in subsection (a) if such property and interests in property are in the United States, come within the United States, or are or come within the possession or control of a United States person. (2) Ineligibility for visas, admission, or parole (A) Visas, admission, or parole A foreign person described in subsection (a) may be— (i) inadmissible to the United States; (ii) ineligible to receive a visa or other documentation to enter the United States