A party does not make a person his own witness for any purpose merely by taking his deposition. The introduction in evidence of the deposition or any part thereof for any purpose other than that of contradicting or impeaching the deponent makes the deponent the witness of the party introducing the deposition, but this shall not apply to the use by an adverse party of a deposition as described in Rule 29.1(b). At the trial or hearing any party may rebut any relevant evidence contained in a deposition whether introduced by him or by any other party.
Puerto Rico Legal Code