Private Investigation Services in Taiwan, China and Asia | TPI Yuanda Detective Agency

TPI Yuanda Detective Agency provides professional private investigation, fact-verification and case-assessment services involving Taiwan, Mainland China and selected locations across Asia. We assist individuals, families, companies and professional advisers with infidelity matters, people search, corporate due diligence, commercial investigations, litigation-related documentation and other legitimate investigation needs.

Every case is different. Before accepting an assignment, we review the client’s purpose, the information already lawfully available, the jurisdiction involved, the specific facts that need to be clarified, the expected time frame and applicable local requirements. We then explain the proposed scope, limitations, estimated costs and possible next steps.

Regional Compliance and Case Assessment

Investigation methods and information that may lawfully be obtained can differ significantly between Taiwan, Mainland China and other jurisdictions. Each cross-border matter is therefore assessed individually according to its legitimate purpose, location, information involved and applicable requirements.

We do not provide services involving hacking, unlawful access to protected information, unauthorized tracking or monitoring devices, illegal acquisition of personal data, intrusion into non-public premises, harassment, retaliation, or the collection or transfer of information restricted by law or involving state secrets or national security.


Private Investigation Services We Provide

Our commonly assessed services include:

  • Infidelity Investigations: Case assessment and fact verification relating to suspected extramarital relationships in Taiwan, Mainland China and cross-border matters.
  • Activity Verification and Documentation: Verification of specific case-related facts within an agreed, necessary and lawful scope.
  • People Search and Skip Tracing: Assistance with locating missing, estranged or difficult-to-find individuals where the client has a legitimate and clearly explained purpose.
  • Background and Identity Verification: Review of lawfully available employment, business, identity and other relevant background information.
  • Corporate Investigations and Commercial Due Diligence: Corporate background checks, business-information verification, commercial fact-finding and pre-transaction due diligence.
  • Fraud-Related Fact Verification: Review and verification of relevant information in matters involving suspected fraud, deception or cross-border commercial disputes.
  • Litigation Support and Evidence Documentation: Collection, review and organization of lawfully obtained information for the client and qualified legal counsel.
  • Cross-Border Investigation Services: Case assessment, lawful verification planning and coordination involving Taiwan, Mainland China and selected locations across Asia.

Infidelity Investigations in Taiwan and Mainland China

When a spouse works, lives or frequently travels in another city or jurisdiction, it may be difficult to determine which concerns are supported by facts and which remain assumptions. We help clients assess suspected infidelity matters by reviewing information they already lawfully possess and identifying the specific facts that may need to be clarified.

Depending on the purpose and circumstances of the case, relevant factual questions may include:

  • Whether information already available is consistent with a stated work, travel or leave arrangement.
  • Whether a spouse and a particular person appear together in a specific event or circumstance relevant to the matter.
  • Whether lawfully obtained information indicates a continuing relationship, shared accommodation or another fact relevant to the client’s objective.
  • Whether photographs, messages, public information, dates and other lawful records can be cross-checked.
  • Whether the available information is sufficient to distinguish confirmed facts from suspicion or assumption.

We do not promise that every investigation will confirm an affair or produce a particular type of evidence. Our role is to report what can actually and lawfully be verified and to distinguish confirmed facts from unresolved information.

Related service: Infidelity Investigation Services in Taiwan and Mainland China


Corporate Investigations and Commercial Due Diligence

Before entering a business relationship, making an investment, extending credit, placing a major order or pursuing a commercial dispute, companies may need to verify information provided by a potential partner, supplier, customer or related entity.

Depending on the matter, we may assist with:

  • Company registration and publicly available corporate-information review.
  • Business-location and operating-status verification where lawful and appropriate.
  • Background research on companies and relevant individuals through lawful sources.
  • Commercial relationships, shareholders, related companies and investment links.
  • Verification of lawfully observable or otherwise verifiable business-site information.
  • Trademark, intellectual-property or suspected infringement fact-finding.
  • Public litigation, enforcement, administrative or other business-risk information.
  • Other corporate investigation matters with a legitimate business purpose.

The scope of each corporate investigation depends on the jurisdiction, client objective, information lawfully available and methods that can appropriately be used in the specific location.


People Search and Skip Tracing

We assist with people-search and location-related matters where the client has a lawful and legitimate reason to locate the person. Examples may include family contact, missing persons, former business contacts, legal proceedings, debt-related communication or other properly explained purposes.

Useful information may include:

  • Full name, former name or known aliases.
  • Recent or older photographs lawfully held by the client.
  • Previous telephone numbers or contact information already known to the client.
  • Previously known residential city, employment information or other lawful contact leads.
  • Company names, occupations or business relationships.
  • Date and circumstances of the last known contact.
  • Other relevant information lawfully obtained by the client.

Previously known addresses or contact information may be reviewed where lawful and appropriate, but we do not obtain protected residential information through hacking, illegal databases, impersonation, unauthorized access or other unlawful or non-public channels.

We do not accept people-search assignments intended for harassment, retaliation, violence, coercive control, unlawful debt collection or another illegitimate purpose.


Cross-Border Investigation Services

Cross-border matters often require additional legal and practical assessment because the permissible scope of investigation and personal-information handling may differ between jurisdictions.

Our case coverage may involve Taiwan, Mainland China, Hong Kong, Macao and selected locations across Asia, subject to the nature of the case, legitimate purpose, local requirements and individual feasibility assessment.

Before accepting a cross-border assignment, we assess the relevant jurisdiction, information already lawfully available, specific factual questions, expected scope, time requirements, complexity and any necessary local or third-party coordination.

More information: Private Investigation Services in Taiwan, Mainland China and Asia


How We Evaluate an Investigation

  1. Initial Consultation: We learn about the case background, legitimate purpose, jurisdiction and the specific facts the client wants to clarify.
  2. Information Review: We review photographs, company information, important dates, public records and other relevant information the client already lawfully possesses.
  3. Scope Assessment: We identify the factual questions and assess what can reasonably and lawfully be verified in the relevant jurisdiction.
  4. Case Plan and Quotation: We explain the proposed scope, estimated time, expected workload, necessary lawful resources and fees.
  5. Formal Engagement: The matter begins after both parties confirm the legitimate purpose, agreed scope, fees and engagement terms.
  6. Fact Verification and Documentation: We address the agreed factual questions within the confirmed scope and organize the resulting records according to the engagement terms.

Information to Prepare Before Contacting Us

You do not need to obtain every possible piece of information before requesting a consultation. It is usually more helpful to provide the information you already lawfully possess and explain exactly what you need to clarify.

Useful starting information may include:

  • A recent photograph of the relevant person, if lawfully held.
  • Known city, company, workplace or other basic identifying information.
  • Important dates, trips, events or other time-sensitive information relevant to the matter.
  • Names and publicly available information relating to relevant people or companies.
  • Messages, photographs, documents, public records or other information lawfully obtained by the client.
  • The specific factual questions the client wants to clarify.
  • The intended purpose of the findings, particularly where litigation or another formal proceeding may be involved.

Incomplete information does not automatically prevent a consultation. We can first review what is currently available and explain whether any additional information is genuinely necessary and can lawfully be obtained.


Privacy, Legality and Investigation Boundaries

We only accept matters with a lawful and legitimate purpose. The proposed scope, information involved and jurisdiction are assessed before an assignment is accepted.

We do not provide:

  • Unauthorized access to mobile phones, computers, email or social-media accounts.
  • Illegal interception or acquisition of private communications.
  • Illegal acquisition of financial, accommodation, telecommunications, medical, household-registration, location, tracking or other protected non-public personal information.
  • Unauthorized or unlawful installation of tracking, listening, recording or monitoring devices.
  • Unauthorized entry into private residences, hotel rooms, private offices or other non-public spaces.
  • Threats, violence, harassment, impersonation, forged documents, retaliation or other unlawful methods.
  • Investigations without a legitimate and clearly explained purpose.
  • Collection, acquisition, possession, transfer or disclosure of information restricted by applicable law or involving state secrets or national security.

Client and case information is used only within the agreed purpose and necessary scope, subject to the engagement terms and applicable privacy, personal-information, data-protection and local legal requirements.


Investigation Records and Legal Proceedings

Photographs, video, documents, event records and other investigation materials do not automatically guarantee a particular legal result. Their relevance and possible use depend on the way the information was obtained, authenticity, connection with the facts in dispute and the legal procedure involved.

Where a matter may involve divorce, civil damages, commercial litigation or another legal proceeding, we recommend that the relevant materials be reviewed by qualified legal counsel familiar with the applicable jurisdiction.

We do not guarantee that any particular material will be admitted by a court or that a client will succeed in legal proceedings.


Why Clients Contact TPI Yuanda Detective Agency

  • More than 20 years of investigation experience.
  • Experience with Taiwan, Mainland China and cross-border matters.
  • Case-by-case assessment rather than fixed or unrealistic promises.
  • Clear discussion of scope, limitations and fees.
  • Professional handling of personal, family and corporate matters.
  • Refusal of unlawful investigation requests.

Request an Initial Case Consultation

If you need investigation assistance involving Taiwan, Mainland China or another location in Asia, please prepare the basic case background, the relevant jurisdiction, information you already lawfully possess and the specific facts you want to clarify.

We will review the available information and explain whether the matter is suitable for further assessment, whether additional information is genuinely needed, the lawful and practical scope that may be available, and the expected fees.

About us: About TPI Yuanda Detective Agency