Vt. Stat. tit. 1 § 551
When, pursuant to U.S. Const. Art. 1, § 8, cl. 17, consent to purchase is given and exclusive jurisdiction ceded to the United States in respect to and over any lands within this State which shall be acquired by the United States for the purposes described in such clause of the Constitution, such jurisdiction shall continue so long as the lands are held and occupied by the United States for public purposes; but concurrent jurisdiction is reserved for the execution upon such lands of all process, civil or criminal, issued by the courts of the State and not incompatible with the cession, and for the enforcement of State law in the federal enclave along the border of Canada and Vermont by law enforcement officers certified under 20 V.S.A. § 2358. The deed or other conveyance of such land to the United States shall contain a description of such lands by metes and bounds and shall be recorded in the town clerk's office of the town in which such lands lie or an accurate map or plan and description by metes and bounds of such lands shall be filed in such clerk's office.
1 V.S.A. § 551