CHAPTER 9 - 9-6 Signature and Verification

• Jurisdiction: United States

9-6 Signature and Verification

The party's attorney or a pro se party must sign the interrogatory response.¹⁹⁷ In addition, the responding party must sign most interrogatory answers under oath.¹⁹⁸ The verification must be unqualified and cannot be made "to the best of [the party's] knowledge."¹⁹⁹ There are two exceptions to the rule requiring an unqualified verification. First, the responding party may qualify its verification by stating that an answer was "based on information obtained from other persons."²⁰⁰ This conforms to the reality of how entities often gather responsive information. Second, "a party need not sign answers to interrogatories about persons with knowledge of relevant facts, trial witnesses, and legal contentions"²⁰¹ because such matters generally are determined by the party's attorney's investigation or involve issues of strategy that are not within the responding party's personal knowledge.

Amended or supplemental interrogatory answers must be signed by the party under oath only if the original answers were required to be signed under oath.²⁰² As a practical matter, a responding party seldom should have to deal with verification issues in connection with supplemental or amended interrogatory answers. Formal supplementation or amendment is required only with respect to the identification of persons with knowledge of relevant facts and trial witnesses.²⁰³ Parties normally will seek the identity of persons with knowledge of relevant facts and experts by means of Texas Rule 194 disclosures,²⁰⁴ which need not be verified.²⁰⁵...