P.R. Laws tit. 34, § 1031
During the term of any sentence which has been suspended, the defendant shall remain subject to the control of the court in which the sentence was imposed, and the judge of such court shall have authority to prescribe the conditions for the suspension of the sentence and when satisfied of the misbehavior of the defendant, to order his commitment for the unexpired term of his sentence.
Whenever a person, the execution of whose sentence has been suspended by virtue of the provisions of § 1030 of this title, is afterwards convicted of a new crime, the suspension of the first shall be null and he shall serve all or such part of it as he has not already served in addition to such sentence as may be imposed at the time of such second conviction.
History —Mar. 12, 1914, No. 19, p. 151, § 2.