57

The jurisdiction granted shall continue only while the United States is the proprietor or is in possession of the lands and the lands are used for the naval, military, or other public purposes for which they were acquired. In the event that the United States ceases to be the proprietor of the lands or to be in possession of same, or in the event that they are not used for the purposes for which they were acquired, the Commonwealth of Puerto Rico shall again have jurisdiction over the same. History —June 10, 1955, No. 62, p. 224, § 4.