P.R. Laws tit. 28, § 51
The Commonwealth of Puerto Rico hereby cedes to the United States of America, for the full period of time during which the lease contract executed as authorized in the foregoing section is effective, its jurisdiction over the Island of Mona, or Mona Island, and adjacent waters, so that the United States of America can and may exercise full and exclusive jurisdiction over the said Island of Mona, or Mona Island, and adjacent waters throughout the entire period during which the said lease contract is in force. Provided, That the Commonwealth of Puerto Rico shall retain concurrent jurisdiction with the United States over offenses and crimes committed within the territorial limits of the land so transferred; such jurisdiction, however, to be exercisable only when charges are preferred by the Naval or other United States officer in charge of the said land. To that effect, the Secretary of Transportation and Public Works is hereby authorized to set forth this cession of jurisdiction in the contract executed or in any other official document and to direct that the same be made a matter of public knowledge through the publication thereof.
History —Dec. 1, 1953, No. 5, p. 8, § 2.