International Investigations in Germany

Discreet. Professional. Court-Ready.

When international law firms, corporations, insurers, family offices or private clients require reliable investigative support in Germany, they need more than information.

They need facts.

They need legally sensitive fieldwork, discreet intelligence gathering and structured documentation that can be used in legal, commercial or strategic decision-making.

Detegere – Private Investigation Service Germany provides professional investigative support for clients from abroad who require discreet, reliable and court-ready investigations in Germany and, where necessary, across Europe and internationally.

Our work is personally coordinated by Oliver Peth, founder of Detegere, trained investigator and experienced specialist in corporate investigations, surveillance, OSINT research, asset-related inquiries and litigation support.

Investigative Support for International Clients

Germany is a strong business location. However, it can also be a complex jurisdiction when foreign clients need reliable information, verified facts or legally usable evidence.

We support international clients in matters involving:

Our clients include foreign law firms, companies, entrepreneurs, insurers, family offices and private individuals who require a professional investigative partner in Germany.

Why International Clients Work With Detegere

International investigations require more than local presence.

They require legal awareness, cultural understanding, discretion, tactical experience and the ability to produce clear, structured reports in English.

Detegere combines German investigative discipline with international communication standards.

We understand that foreign clients often need answers quickly, but also safely. Therefore, every case is assessed carefully before action is taken. We review the objective, the legal framework, the available information and the most suitable investigative approach.

Our goal is not to create unnecessary activity.

Our goal is to obtain reliable findings in a discreet, lawful and professionally documented manner.

Field Investigations in Germany

In many cases, digital research alone is not enough.

Addresses must be verified. Places must be checked. People must be observed within legal limits. Business activities must be confirmed. Local circumstances must be assessed. Neighbours, locations, commercial surroundings or public records may need to be reviewed.

For this reason, we combine OSINT research with practical field investigation.

Depending on the case, this may include:

  • verification of addresses
  • discreet site checks
  • surveillance
  • neighbourhood inquiries
  • company location checks
  • documentation of daily routines
  • verification of employment or business activity
  • photographic documentation where legally permissible
  • structured reporting for lawyers or decision-makers

All measures are carried out with discretion, proportionality and respect for the applicable legal framework.

Surveillance in Germany

Surveillance can be an important tool when facts need to be documented clearly.

This may apply in cases involving suspected employment fraud, undeclared work, maintenance disputes, insurance claims, debtor investigations, competitive misconduct or other matters where behaviour must be verified objectively.

Our surveillance assignments are planned carefully. We assess the legal basis, the operational risks, the location, timing, personnel requirements and the documentation needs before the assignment begins.

The result is not a simple observation note.

The result is a structured report with times, locations, observations and, where legally possible, supporting image or video material.

This is essential when the findings may later be reviewed by lawyers, courts, insurers or corporate decision-makers.

OSINT and Intelligence Research

Open Source Intelligence is often the first step in international investigations.

However, professional OSINT is not a simple internet search. It requires method, verification and experience.

We analyse publicly available information, business records, digital traces, social media indicators, company structures, archived data, media reports and other legally accessible sources.

The objective is to identify relevant facts, inconsistencies, connections and investigative leads.

OSINT research may support:

  • due diligence
  • debtor investigations
  • asset-related inquiries
  • background checks
  • corporate disputes
  • fraud investigations
  • litigation preparation
  • reputational risk assessments
  • international case strategy

All findings are documented in a clear and structured manner.

Litigation Support for Law Firms

International law firms often require a reliable partner in Germany who can support legal proceedings with discreet fact-finding.

We assist lawyers by gathering, verifying and documenting information that may support civil, commercial, employment, family or insurance-related matters.

Our reports are prepared with a focus on clarity, chronology and evidential value.

We understand that lawyers need facts they can assess, use and explain.

Therefore, our reports are written in a structured format and can be provided in English.

Asset Tracing and Debtor-Related Inquiries

When debtors, business partners or private individuals are located in Germany, foreign clients may require reliable information regarding residence, employment, business activity or visible lifestyle indicators.

We can support such cases through a combination of OSINT, public-source research, discreet inquiries and field checks.

Depending on the legal framework and the available information, this may include:

  • address verification
  • residence checks
  • business activity checks
  • company research
  • lifestyle observations within legal limits
  • identification of relevant connections
  • documentation of findings for legal assessment

We do not promise impossible results.

But we do promise a professional, realistic and methodical approach.

Corporate Investigations

Companies operating internationally may face internal risks, fraud, misconduct, information leaks, undeclared conflicts of interest, compliance violations or suspicious business relationships.

Detegere supports companies with discreet corporate investigations in Germany.

Our services include:

  • internal investigations
  • employee misconduct investigations
  • sick leave abuse investigations
  • working time fraud investigations
  • competitive misconduct investigations
  • supplier and partner checks
  • fraud-related inquiries
  • compliance-related fact-finding
  • discreet intelligence support for management and legal departments

We work quietly, professionally and with a clear understanding of reputational risk.

Insurance Investigations

Insurance claims may involve complex factual questions.

International insurers may require German field support when a claimant, insured person, witness, company or relevant location is based in Germany.

We assist with discreet and professional investigations in insurance-related matters, including:

  • personal injury claims
  • disability-related claims
  • suspected claim fraud
  • activity checks
  • residence verification
  • location documentation
  • witness or environment inquiries where appropriate
  • structured reporting for claims departments or legal counsel

The objective is always the same: reliable facts, documented clearly and professionally.

Confidential Communication and Secure Reporting

Sensitive investigations require secure communication.

We handle all mandates with strict confidentiality. Reports and relevant documents can be transferred in encrypted form. Passwords can be transmitted through a separate communication channel if required.

Our reports can be prepared in English and structured for international clients, law firms, insurers and corporate decision-makers.

A typical report may include:

  • case summary
  • assignment background
  • investigative measures
  • timeline of findings
  • documented observations
  • OSINT results
  • photographs or attachments where legally permissible
  • professional assessment of the findings
  • next-step recommendations where appropriate

Germany-Based. Internationally Connected.

Detegere is based in Germany and operates nationally and internationally.

Our location in the Rhine-Main area provides excellent access to Frankfurt am Main, Frankfurt Airport, major business regions, courts, financial institutions, industrial areas and international transport routes.

Where international cooperation is required, we work with trusted professional partners and established networks.

This allows us to support clients not only in Germany, but also in cross-border matters.

Personally Coordinated by Oliver Peth

International clients need a responsible point of contact.

At Detegere, sensitive mandates are not handled anonymously. They are personally coordinated by Oliver Peth.

Oliver Peth combines investigative training, commercial understanding, practical field experience and international case coordination. This combination is particularly valuable in matters involving companies, lawyers, family offices, insurers and high-value private disputes.

Our clients value clear communication, realistic assessments and discreet execution.

When Should You Contact Us?

You should contact us if you require investigative support in Germany and need:

  • verified facts instead of assumptions
  • discreet field investigation
  • English-language reporting
  • support for legal proceedings
  • professional surveillance
  • OSINT and intelligence research
  • asset-related inquiries
  • corporate investigation support
  • confidential coordination with a German investigator

The earlier we are involved, the better the investigative options usually are.

Time can be critical.

Evidence may disappear. Behaviour may change. Digital traces may be deleted. Witnesses may become unavailable.

Therefore, a timely and professional assessment is often decisive.

All investigative measures in Germany must respect the applicable legal framework, including data protection requirements. For international clients, the English version of the German Federal Data Protection Act provides a useful official reference point.

Request Confidential Investigative Support in Germany

If you are an international law firm, company, insurer, family office or private client and require professional investigative support in Germany, you may contact us confidentially.

Please provide a short summary of the matter, the objective of the investigation, the known facts and any relevant documents.

After reviewing the information, we will provide an initial assessment of possible investigative measures, expected effort, timeframe and costs.

Detegere – Private Investigation Service Germany
Discreet investigations. Reliable facts. Court-ready documentation.

Contact:
Oliver Peth
Private Investigation Service Detegere
Germany

Phone: +49 (0) 6023 929688-0
E-mail: oliver.peth@kriminalistik.info

Picture: KI

Professional investigative support in Germany for international law firms, companies, insurers and family offices. Surveillance, OSINT, litigation support.