When, pursuant to the agreement on detainers or other provision of law, a person in actual confinement under sentence of another jurisdiction is brought before a California court and sentenced by the judge to serve a California sentence concurrently with the sentence of the other jurisdiction or has been transferred to another jurisdiction for concurrent service of previously imposed sentences, the Board of Prison Terms, and the panels and members thereof, may meet in such other jurisdiction, or enter into cooperative arrangements with corresponding agencies in the other jurisdiction, as necessary to carry out the term-fixing and parole functions.
Ca. Pen. Code § 1389.7