Marcos vs. Heirs of the Late Dr. Andres Navarro, Jr.

A handwriting expert who meets the general qualifications of a witness under Section 20, Rule 130 cannot be disqualified from testifying on the ground that the opposing party was not given prior notice of the examination or that the court did not authorize the examination, as these are not statutory disqualifications; the specific enumeration of disqualifications in Sections 21 to 24, Rule 130 excludes all other causes of disability, and the admissibility of expert opinion under Section 49, Rule 130 is a separate issue from the weight accorded to such testimony.

Spouses Andres Navarro, Sr. and Concepcion Medina-Navarro died in 1958 and 1993, respectively, leaving behind several parcels of land including a 108.3997-hectare lot located in Cayabon, Milagros, Masbate. They were survived by their daughters Luisa Navarro Marcos and Lydia Navarro Grageda, and the heirs of their only son Andres Navarro, Jr. Petitioner and her sister discovered that respondents were claiming exclusive ownership of the subject lot based on an Affidavit of Transfer of Real Property dated May 19, 1954, allegedly showing that Andres, Sr. had donated the property to Andres, Jr. Believing the affidavit to be a forgery, the sisters requested a handwriting examination by PNP expert PO2 Mary Grace Alvarez, who concluded that Andres, Sr.'s signature on the affidavit did not match submitted standard signatures.

• Spouses Andres Navarro, Sr. and Concepcion Medina-Navarro died in 1958 and 1993, respectively, leaving several parcels of land including a 108.3997-hectare lot in Cayabon, Milagros, Masbate (subject lot).
• The spouses were survived by their daughters Luisa Navarro Marcos (petitioner) and Lydia Navarro Grageda, and the heirs of their only son Andres Navarro, Jr. (respondents).
• Petitioner and her sister discovered that respondents were claiming exclusive ownership of the subject lot based on an Affidavit of Transfer of Real Property dated May 19, 1954, allegedly showing a donation from Andres, Sr. to Andres, Jr.
• Believing the affidavit to be a forgery, the sisters requested a handwriting examination by PNP expert PO2 Mary Grace Alvarez, who concluded that Andres, Sr.'s signature on the affidavit and the submitted standard signatures were not written by the same person.
• The sisters sued for annulment of the deed of donation before the RTC of Masbate (Civil Case No. 5215).
• After pre-trial, respondents moved to disqualify PO2 Alvarez, arguing that the RTC did not authorize the handwriting examination and that presenting her would violate due process as no notice was given to them before the examination was conducted.
• The RTC granted the motion to disqualify, ruling that PO2 Alvarez's supposed testimony would be hearsay as she has no personal knowledge of the alleged handwriting, and that her testimony was not yet needed if she were to be presented as an expert witness.
• While the certiorari petition was pending before the CA, Civil Case No. 5215 was dismissed, but subsequently reinstated by another CA Division, a fact which the CA Division handling the certiorari petition refused to take judicial notice of.

• The CA erred in refusing to reconsider its decision despite the reinstatement of Civil Case No. 5215 by another CA Division, rendering the issue of the witness's disqualification live and justiciable.
• The CA erred in not ruling that the RTC committed grave abuse of discretion in disqualifying PO2 Alvarez as a witness.
• PO2 Alvarez should be allowed to testify as an expert witness to render an opinion on whether the disputed handwriting was made by Andres, Sr. or whether it is a forgery, as her testimony is crucial to the resolution of the case.

• The CA properly disqualified PO2 Alvarez as a witness because the RTC did not authorize the handwriting examination and allowing her testimony would violate their constitutional right to due process since no notice was given to them before the examination was conducted.
• The disqualification of PO2 Alvarez was rendered moot by the dismissal of Civil Case No. 5215.
• PO2 Alvarez's report is a worthless piece of paper and her testimony would be useless and irrelevant.

• Procedural:
  • Whether the CA erred in refusing to take judicial notice of the reinstatement of Civil Case No. 5215 by another CA Division, thereby rendering the petition for certiorari moot.
• Substantive Issues:
  • Whether the RTC committed grave abuse of discretion in disqualifying PO2 Mary Grace Alvarez as a witness.
  • Whether a handwriting expert may be disqualified from testifying on the ground that the opposing party was not given prior notice of the examination conducted.

• Procedural:
  • The Supreme Court held that the CA erred in refusing to take judicial notice of the Decision of another CA Division which reinstated Civil Case No. 5215. While the CA properly considered the RTC Orders dismissing the case, it improperly refused to acknowledge the subsequent reinstatement. The reinstatement of Civil Case No. 5215 is a fact that cannot be ignored, and the issue of PO2 Alvarez's disqualification was not moot.
• Substantive:
  • The RTC committed grave abuse of discretion in disqualifying PO2 Alvarez as a witness. Under Section 20, Rule 130 of the Rules on Evidence, all persons who can perceive and make known their perception to others may be witnesses, and the specific disqualifications under Sections 21 to 24 (mental incapacity, marriage, death/insanity of adverse party, and privileged communication) are exclusive.
  • PO2 Alvarez possessed all the qualifications and none of the disqualifications provided in the Rules. The RTC confused the qualification of the witness with the credibility and weight of her testimony.
  • Section 49, Rule 130 allows the opinion of an expert witness on matters requiring special knowledge, skill, experience, or training. PO2 Alvarez's testimony is not hearsay but an admissible expert opinion on handwriting examination.
  • The use of "may" in Section 49 is permissive, not mandatory, but handwriting experts are often offered as witnesses given the technical nature of examining forged documents. The analysis of the questioned signature is crucial to the resolution of the case.

• Grave Abuse of Discretion — Defined as a capricious or whimsical exercise of judgment equivalent to lack of jurisdiction; it must be patent and gross, amounting to an evasion of a positive duty or virtual refusal to perform a duty enjoined by law, or acting in an arbitrary and despotic manner by reason of passion and hostility. In this case, the RTC's disqualification of a witness without statutory basis constituted grave abuse.
• Exclusive Enumeration of Disqualifications (Expressio Unius) — Under the principle that the specific enumeration of disqualified witnesses in Sections 21 to 24, Rule 130 excludes the operation of causes of disability other than those mentioned in the Rules. A witness cannot be disqualified on grounds not expressly provided by law, such as lack of prior notice to the opposing party.
• Expert Witness Opinion — Section 49, Rule 130 allows the opinion of a witness possessing special knowledge, skill, experience, or training on matters requiring such expertise. The value of an expert's opinion depends on the assistance provided in pointing out distinguishing marks and characteristics between genuine and false specimens, not merely on the expert's conclusion that a writing is genuine or false.

• "Grave abuse of discretion defies exact definition, but it generally refers to capricious or whimsical exercise of judgment as is equivalent to lack of jurisdiction."
• "The specific enumeration of disqualified witnesses excludes the operation of causes of disability other than those mentioned in the Rules."
• "The Rules should not be interpreted to include an exception not embodied therein."
• "The value of the opinion of a handwriting expert depends not upon his mere statements of whether a writing is genuine or false, but upon the assistance he may afford in pointing out distinguishing marks, characteristics and discrepancies in and between genuine and false specimens of writing which would ordinarily escape notice or detection from an unpracticed observer."

• Armed Forces of the Philippines Retirement and Separation Benefits System v. Republic of the Philippines — Cited for the rule that a witness must only possess all the qualifications and none of the disqualifications provided in the Rules of Court.
• Cavili v. Judge Florendo — Cited for the doctrine that the specific enumeration of disqualified witnesses excludes other causes of disability not mentioned in the Rules; established that the Rules should not be interpreted to include exceptions not embodied therein.
• Tamani v. Salvador — Cited for the principle regarding the admissibility and value of expert opinion on handwriting examination; the Court considered the testimony of a PNP document examiner regarding simulated or copied forgery.
• Deutsche Bank AG v. Court of Appeals — Cited for the definition of grave abuse of discretion.
• Republic of the Philippines v. Hon. Ramon S. Caguioa — Cited for the definition of grave abuse of discretion as violation of the Constitution or gross disregard of law or jurisprudence.
• Tabao v. People — Cited for the interpretation that the use of "may" in Section 49, Rule 130 is permissive, not mandatory.
• Manzano, Jr. v. Garcia — Cited for the proposition that courts may dispense with expert witnesses to prove forgeries.
• Mendez v. Court of Appeals — Cited for the recognition that handwriting experts are often offered as expert witnesses considering the technical nature of examining forged documents.

• Section 20, Rule 130 of the Rules on Evidence — Provides that all persons who can perceive and make known their perception to others may be witnesses, and that religious or political belief, interest in the outcome, or conviction of a crime are not grounds for disqualification.
• Sections 21 to 24, Rule 130 of the Rules on Evidence — Enumerate specific grounds for disqualification of witnesses (mental incapacity or immaturity, marriage, death or insanity of adverse party, and privileged communication), which the Court held to be exclusive.
• Section 49, Rule 130 of the Rules of Evidence — Allows the opinion of a witness on matters requiring special knowledge, skill, experience, or training which the witness is shown to possess; governs the admissibility of expert witness testimony.