California, United States of America
The following excerpt is from People v. Helser, C079151 (Cal. App. 2016):
argument is consistent with the general common law rule that "a trial court is deprived of jurisdiction to resentence a criminal defendant once execution of the sentence has commenced. [Citations.] Where the trial court relinquishes custody of a defendant, it also loses jurisdiction over that defendant." (People v. Karaman (1992) 4 Cal.4th 335, 344.)
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