Accordingly, on May 18, 2009, complainant appeared before the Anti-Fraud and Computer Crimes Division of the NBI where he was interviewed and asked to identify documents including: (1) his and respondent's high school records; (2) his transcript of records from the University of Makati; (3) Land Transportation Office's records showing his and respondent's driver's licenses; (4) records from St. Mary's University showing that complainant's transcript of records from the University of Makati and his Birth Certificate were submitted to St. Mary's University's College of Law; and (5) Alumni Book of St. Mary's University showing respondent's photograph under the name "Patrick A. Caronan." [19] Complainant later learned that the reason why he was invited by the NBI was because of respondent's involvement in a case for qualified theft and estafa filed by Mr. Joseph G. Agtarap (Agtarap), who was one of the principal sponsors at respondent's wedding. [20] Realizing that respondent had been using his name to perpetrate crimes and commit unlawful activities, complainant took it upon himself to inform other people that he is the real "Patrick A. Caronan" and that respondent's real name is Richard A. Caronan. [21] However, problems relating to respondent's use of the name "Atty. Patrick A. Caronan" continued to hound him. In July 2013, PSC received a letter from Quasha Ancheta Pena & Nolasco Law Offices requesting that they be furnished with complainant's contact details or, in the alternative, schedule a meeting with him to discuss certain matters concerning respondent. [22] On the other hand, a fellow church-member had also told him that respondent who, using the name "Atty. Patrick A. Caronan," almost victimized his (church-member's) relatives. [23] Complainant also received a phone call from a certain Mrs. Loyda L. Reyes (Reyes), who narrated how respondent tricked her into believing that he was authorized to sell a parcel of land in Taguig City when in fact, he was not. [24] Further, he learned that respondent was arrested for gun-running activities, illegal possession of explosives, and violation of Batas Pambansa Bilang (BP) 22. [25] Due to the controversies involving respondent's use of the name "Patrick A. Caronan," complainant developed a fear for his own safety and security. [26] He also became the subject of conversations among his colleagues, which eventually forced him to resign from his job at PSC. [27] Hence, complainant filed the present Complaint-Affidavit to stop respondent's alleged use of the former's name and identity, and illegal practice of law. [28] In his Answer, [29] respondent denied all the allegations against him arid invoked res judicata as a defense. He maintained that his identity can no longer be raised as an issue as it had already been resolved in CBD Case No. 09-2362 where the IBP Board of Governors dismissed [30] the administrative case [31] filed by Agtarap against him, and which case had already been declared closed and