【Lida International Investigation Agency · Why We Started】

Almost everyone who walks through our door is carrying a question they find hard to put into words.
Lida International Investigation Agency was founded in 2007, born from a simple idea: in an age where truth is hard to tell from fiction and people are hard to read, everyone deserves a lawful, reliable, and trustworthy way to confront the truth that matters most to them. When we started, there was no shortage of firms willing to take on a case — but few treated "lawful" and "transparent" as non-negotiable principles.

Lida set out to redefine what a private investigation firm should be, through proper investigative methods, clear pricing, and genuine empathy for each client's situation. That founding purpose remains unchanged to this day.



Lida's Growth Milestones

  1. Officially became a member of the World Association of Detectives (W.A.D.), connecting with the global investigation industry.

    2024

  2. Expanded operations, launched an IP strategy, and partnered with Korea's Certified Private Investigators Association.

    2025

  3. Partnered with the Korea Detective Federation and launched the detective drama Zhai'er Holmes' Odd Jobs Agency.

    2026

Whether a case succeeds or fails comes down to how sound the reasoning is and how solid the evidence stands. Lida's investigators don't work alone — they operate as a cross-disciplinary team: seasoned investigators handle case planning, on-site evidence gathering, and intelligence analysis; legal consultants review the legality and evidentiary value of every step; and technical specialists use professional equipment to close information gaps. We believe truly reliable investigation work comes from combining human intelligence with technology — so that every piece of evidence can withstand scrutiny.

Founder — Hsieh Chih-Po

Founder — Hsieh Chih-Po

Professional Background
Mr. Hsieh Chih-Po has devoted many years to the investigation industry, with over a decade of hands-on investigative experience, and is the author of Zhai'er Holmes' Odd Jobs Agency, documenting his observations and reflections from years of frontline investigative work.

Founding Philosophy
Under his vision, Lida aims to be more than just an ordinary investigation agency — by leading through example, he hopes to raise the professional standard and public perception of the entire industry, so that the words "private investigator" carry the weight of trust and professionalism they deserve.

【Lida's Promise to Every Client】

We cannot promise that every case will succeed. But we do promise this: to do everything within the bounds of the law, to protect your privacy throughout the process, and to deliver a result worthy of the trust you've placed in us.
Behind this promise is Lida's rigorous quality assurance system. From case assessment and contract signing, through execution, to final delivery, every stage follows clear standard operating procedures overseen by dedicated staff. Throughout the investigation, a project management and progress-reporting system keeps clients informed every step of the way, while internal reviews ensure our methods stay lawful, the evidence is complete, and every report is accurate. We believe true peace of mind doesn't come from a verbal promise — it comes from a system that can be examined, and that never cuts corners.
If you're losing sleep over a difficult problem, let Lida International Investigation Agency hear your story. Our team of private investigators in Hong Kong is ready, at any time, to be the partner you can trust most.

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About Us FAQ | Frequently Asked Questions


  • Q1: When was Lida International Investigation Agency founded?

    Lida International Investigation Agency was established in 2007, and has spent many years working in the fields of personal and commercial investigation, providing services grounded in the principles of legality, confidentiality, and professionalism.

  • Q2: What kinds of professionals make up Lida's investigation team?

    Lida's investigation team doesn't operate as lone individuals, but through cross-disciplinary collaboration: seasoned investigators handle case planning, on-the-ground evidence gathering, and intelligence analysis; legal consultants oversee the lawfulness of the investigative process and the evidentiary weight of the findings; and technical evidence-gathering specialists use professional equipment to overcome informational blind spots.

  • Q3: Does Lida hold any internationally recognized professional credentials?

    Lida International Investigation Agency officially became a member of the World Association of Detectives (W.A.D.) in 2024, and continues to build cross-border partnership networks with investigation agencies in the Philippines, South Korea, Japan, and other regions, staying connected with the international industry.

  • Q4: How does Lida ensure the quality and reliability of its investigative services?

    Lida has established a rigorous quality assurance system: from case assessment and contract signing, through case execution, to final delivery, every stage follows a clearly defined standard operating procedure with dedicated oversight. During an investigation, a project management and progress-reporting mechanism is in place, and service quality is also subject to internal review, ensuring that investigative methods are lawful, the evidence is complete, and the report is accurate.

  • Q5: What sets Lida apart from other investigation agencies on the market?

    Since its founding in 2007, Lida has always treated "legality" and "transparency" as non-negotiable principles. Compared to agencies that simply take on cases, Lida places greater emphasis on combining "personal network intelligence" with "technology," and ensuring that every piece of evidence can withstand scrutiny — this has remained Lida's consistent investigative philosophy from the very beginning.