P.R. Laws Ap. tit. 34A, § II, Rule 224
Provided none of the conditions of the bond is breached, any surety may, in order to be exonerated, surrender the defendant, or the latter may surrender himself to the officer in whose custody he was committed at the time of giving bail, or might have been committed if none had been furnished, in the following manner:
(a) A certified copy of the undertaking of the bail or certificate of deposit must be delivered to the corresponding officer, who must detain the defendant in his custody as upon a commitment and he shall issue a certificate acknowledging the surrender.
(b) The officer shall send the certified copy of the bail and the certificate of surrender of the defendant to the court in which the action is pending and the court may, upon notice to the prosecuting attorney, to whom a copy of the undertaking and certificate shall be sent, order that the bail be exonerated or return the deposit.