Atty. Ricardo A. DiazSenior Legal & Security Advisor
.png)
Uncompromising legal expertise, Veteran criminal investigator, intelligence practitioner, and strategic security operations experience derived from decades of government service, specializing in complex transnational cases.
Distinguished Public Service
Atty. Ricardo A. Diaz is a distinguished Filipino lawyer, veteran investigator, and former senior executive of the National Bureau of Investigation (NBI) under the Department of Justice of the Republic of the Philippines.
With decades of dedicated public service, he is widely recognized for his leadership in criminal investigations, intelligence operations, and national law enforcement. Throughout his distinguished NBI career, Atty. Diaz held numerous executive positions, overseeing major investigative operations and leading multidisciplinary teams responsible for combating organized crime, terrorism, human trafficking, financial crimes, and other high-profile criminal cases. He has developed a deep specialty in handling critical criminal cases and judicial strategy.
His leadership extended across several strategic regional offices, as well as national intelligence, crisis management, and international law enforcement coordination.
Credentials
Executive Leadership
NBI Regional Director Assignments
National Intelligence & Bureau Leadership
Areas of Professional Expertise
Criminal Cases & Investigation
Modern evidence gathering techniques and advanced investigation methods specializing in high-profile criminal cases.
National Security
Tactical advice and strategic security planning to manage risks and protect national interests.
Counter-Terrorism
Intelligence intelligence-led approaches to preempt threat networks and secure infrastructures.
INTERPOL Coordination
Liaison and strategic alignment with international law enforcement networks.
Organized Crime
Strategies for dismantling transnational crime groups and countering human trafficking networks.
Financial & Economic Crime
Tracing capital, auditing, and investigating white-collar and corporate financial infractions.
Crisis Management
Executive handling of national emergencies, media strategy, and strategic public relations.
Strategic Law
General legal counsel specializing in defense, risk compliance, private prosecuter, and judicial affairs.
FBI Professional Development
Atty. Diaz has participated in specialized professional training with the Federal Bureau of Investigation (FBI) of the United States. This engagement strengthened his expertise in advanced investigative methodologies, intelligence analysis, tactical operations, and international law enforcement cooperation. He is also active in the FBI National Academy Asia Pacific Chapter and serves as the Chairman of the Philippine Group.
Broadcasting & Journalism
Before entering public service, Atty. Diaz built a successful career in journalism and broadcasting, serving as a newspaper reporter and radio broadcaster. His rich communications background later contributed significantly to his appointment as the NBI's Official Spokesperson, representing the Bureau in matters of national and international importance. He is also an instructor at the NBI National Academy.
Advocacy & Association Leadership
Today, Atty. Ricardo A. Diaz serves as the President of the NBI Retirees and Ex-Employees Association, Inc. (NBI-REXEAI). In this capacity, he represents retired NBI officials and former employees while continuing to advocate for professionalism, institutional integrity, and the advancement of the Philippine criminal justice system.
“Recognized for his integrity, leadership, and dedication to public service, Atty. Ricardo Diaz has made significant contributions to the advancement of criminal investigation and law enforcement in the Philippines. His distinguished career reflects a lifelong commitment to justice, national security, and the rule of law.”
Chief Immigration Consultancy
Heading the firm's immigration division, Rico Pedrealba serves as Chief Immigration Consultancy, bringing over two decades of senior operational and supervisory experience within the Philippine Bureau of Immigration (BI).
Throughout his distinguished career at the Bureau of Immigration—including long-standing supervisory roles at Ninoy Aquino International Airport (NAIA)—Mr. Pedrealba has specialized in frontline border control, high-profile Immigration Lookout Bulletin Orders (ILBO), offloading mitigations, and complex travel clearances under the Philippine Immigration Act (Commonwealth Act No. 613).
In his current executive role at the firm, Mr. Pedrealba collaborates directly with Atty. Ricardo A. Diaz to deliver strategic, bulletproof immigration solutions—encompassing corporate expat mobility, alien registration compliance, visa processing, deportation defense, and travel clearance enforcement.
Career & Operational Highlights
Executive Profile
Executive Legal Assistant
Assisting Atty. Ricardo A. Diaz, Dr. Patrick Dela Cruz serves as the firm's Senior Paralegal, Chief Assistant Immigration Adviser, and Executive Legal Assistant, specializing in legal research, consular affairs, document authentication, and executive support operations.
With extensive public service experience spanning intelligence operations, diplomatic liaison, and international consular management, Dr. Patrick oversees legal administration, embassy coordination, and document authentication protocols for the firm.
Coordination with Attorney & Investigation Support
Drawing on many years of experience working alongside NBI investigators, Dr. Patrick provides essential support in coordinating with various government agencies and assisting lawyers with investigative and administrative matters.
He has extensive experience in conducting investigations, verification, and due diligence, always emphasizing accuracy, efficiency, and professionalism.
He continues to maintain close working relationships with NBI investigators, enabling smooth coordination, information verification, and communication with relevant agencies when handling various legal matters.
“Dr. Patrick is committed to carrying out his work with integrity, professionalism, and full compliance with applicable laws and regulations, providing reliable and trustworthy support to clients and partners.”
Career & Professional Timeline
Executive Profile
Request a Consultation
Consult with Rick Diaz & Associates Law Firm Quantico Consultancy on complex legal defenses, corporate intelligence, or national security planning.