HALADÓ HUMINT • OKTÓBER 31. ÉS NOVEMBER 1. • 2 × 4 ÓRA • 39 900 FT • JELENTKEZZ MOST → ÉLŐ ONLINE OSINT KÉPZÉS • NOVEMBER 14–15. • 2 × 6 ÓRA • EARLY BIRD 29 900 FT • JELENTKEZZ MOST → ENGLISH LIVE COURSE • 28–29 NOVEMBER • BUSINESS INTELLIGENCE & OSINT • LEARN MORE →
Tarkó Investigations logo
European Investigative LearningInformation · Strategy · Protection
European investigative training · OSINT · HUMINT · GDPR awareness

Information Gathering and Private Investigation in Europe

Practical European investigative training for universities, professional organisations, cybersecurity teams, compliance professionals and individual learners.

Created and presented by Dávid Komporday, based on the research and investigative expertise of Áron Tarkó.

Cybersecurity & Infosecurity Teams Universities Professional Organisations Compliance & Corporate Investigations
Discuss Collaboration
LIVEinteractive professional training
BUSINESSdue diligence & risk awareness
OSINTHUMINT, GDPR, verification
EUlegal context & case studies
Dávid Komporday and Áron Tarkó
Practical investigative training for professionals across Europe.OSINT · HUMINT · Due Diligence · GDPR-aware investigation
Upcoming live training

Choose the live course that fits you

Three live online formats are currently available: an advanced Hungarian HUMINT course, an intensive Hungarian OSINT weekend course, and an English-language Business Intelligence & OSINT programme.

Hungarian · 31 October & 1 November

Advanced HUMINT Training

2 × 4 hours · 08:30–12:30 · 8 hours total

Advanced practical training on solving investigative cases through human sources, source handling, cover stories and international approaches.

39 900 Ft Full participation fee
View Advanced Course
Hungarian · 14–15 November

Intensive Live Online OSINT Training

2 × 6 hours · 12 hours total · live online

A deeper two-day programme covering investigative thinking, source verification, digital traces, people and company research, legal and ethical frameworks, and practical exercises.

29 900 Ft Early bird until 31 October · regular price 39 900 Ft
View November Hungarian Course
English · 28–29 November

Business Intelligence & OSINT

2 × 5 hours · live online · English

Practical business intelligence, due diligence, partner verification and OSINT for international professionals, companies and decision-makers.

€199 Early bird · regular price €249
View English Course

Résztvevőink mondták

„Tarkó Áron kiváló szakember és oktató, aki az alapoktól és a megfelelő jogszabályi háttér ismeretétől vezette a csapatot a gyakorlati példákhoz. Sokan nem is gondolják, hogy az itt megszerzett tudást az élet számtalan területén kamatoztathatják.”

Korábbi élő online OSINT-képzésünk résztvevője · név nélkül közölt visszajelzés

„Hatalmas tudásanyag, amit még szerintem majd át kell olvasni és föl kell dolgozni, amit kaptunk ezen a két hétvégén.”

Korábbi élő online OSINT-képzésünk résztvevője · név nélkül közölt visszajelzés

„Én nagyon köszönöm, hogy itt lehettem. Nagyon nagy élmény volt. […] Katonai értelemben véve mondom, hogy többször műveleti területen — Irak, Afganisztán, Koszovó — hasonló módszerekkel, teljesen hasonló módszerekkel dolgoztunk az adott felderítési információ ellenőrzésére.”

Korábbi katonai elemző-értékelő főtiszt, OSINT-képzésünk résztvevője · név nélkül

„Különösen tetszett, hogy az online képzés rendkívül gyakorlatias volt, és a megszerzett tudást a gyakorlatban is alkalmazható módon adta át.”

Zétény K. · korábbi OSINT-képzésünk résztvevője
Megnézem a következő OSINT-képzést →
Business intelligence · Due diligence · Corporate risk

Do you really know who you're doing business with?

Practical investigative training for companies and professionals who want to verify partners, reduce risk and make better-informed decisions.

OSINT & source verification Due diligence Compliance & corporate security English live online course
Explore Business Intelligence Training Register for the Live Course
Choose your path

How would you like to work with us?

The highest-value opportunities are academic and professional partnerships. Individual Udemy enrolment remains available for learners who want to start immediately.

🎓

For Universities

Integrate European investigative methodologies into existing programmes, build an elective module or invite us for a guest lecture.

Explore Academic Collaboration
🤝

For Professional Organisations

Offer your members practical investigative training through webinars, licensing, bulk access or partnership campaigns.

Discuss Partnership Options
▶

For Individual Learners

Start with the full Udemy course and learn practical OSINT, HUMINT, verification, reporting, ethics and case-analysis methods.

View the Course
Academic partnerships

Bring European Investigative Methodologies into Your Curriculum

For universities, lecturers and programme directors in criminology, security studies, intelligence analysis, journalism, law, compliance and cybersecurity education.

  • ✓Use the course as recommended learning or pre-class material.
  • ✓Integrate selected modules into an existing subject.
  • ✓Build a new elective around information gathering and private investigation in Europe.
  • ✓Invite Dávid and/or Áron for a guest lecture, workshop or pilot session.

Why it fits academic programmes

  • ✓Research-based academic foundation adapted into practical learning.
  • ✓Structured curriculum with quizzes, assignments, reflection and certificate-ready learning flow.
  • ✓European perspective: GDPR, legal boundaries, ethical conduct and realistic cases.
  • ✓Useful for students who need source verification, critical thinking and investigative logic.
Schedule an Academic Discussion

Partnership models

  • ✓Member discount campaigns with dedicated links.
  • ✓Affiliate or revenue-sharing partnership.
  • ✓Joint webinar or online briefing for your community.
  • ✓Bulk licences for teams, chapters or member groups.
  • ✓In-person lecture, conference talk or specialist workshop.
Explore Partnership Opportunities
Professional organisations

Equip Your Members with Practical Investigative Skills

For cybersecurity communities, OSINT groups, compliance associations, corporate security networks, fraud prevention groups and professional training providers.

Course preview

Information Gathering and Private Investigation in Europe

A complete Udemy-compatible learning structure: video lessons, quizzes, assignments, case studies, final reflection and optional mentoring pathways.

1

Introduction to Private Investigation

History, ethics, legal boundaries and the investigator’s mindset.

2

Core Principles of Information Gathering

Open, human and technical sources; OSINT, HUMINT, verification and triangulation.

3

Tools and Techniques

Digital tools, observation, documentation, analysis, reporting and presentation.

4

European Case Studies

Corporate data leak, missing-person scenario and disinformation campaign analysis.

5

Professional Practice

Trust, client management, GDPR, confidentiality, pricing, contracts and credibility.

6+

Next Steps & Mentoring

Final review, certificate, reflection assignment and optional consultation pathways.

Start Learning on Udemy Discuss a Partnership
Meet the team

The people behind the course

The project combines practical learning design, business development, academic research and specialist European investigative knowledge.

Dávid Komporday

Dávid Komporday

Course Creator & Presenter

Dávid created and presents the Udemy course, adapting academic research into a practical, visual and accessible professional learning experience for European audiences.

Áron Tarkó

Áron Tarkó

Academic Lead & Subject Matter Expert

Áron contributes the research and investigative expertise behind the methodology, with a focus on European information gathering, ethics and legal frameworks.

Insights

European investigation blog

Short professional articles on OSINT, HUMINT, GDPR-conscious investigation, source verification and European investigative practice.

MAGÁNNYOMOZÁS · HU

Mit csinál egy magánnyomozó?

A magánnyomozó tényeket ellenőriz, információkat gyűjt és dokumentál, miközben tiszteletben tartja az adatvédelmi és egyéb jogszabályokat.

Cikk elolvasása →
MAGÁNNYOMOZÁS · HU

Hogyan lehet valakiből magánnyomozó Magyarországon?

A szakmai felkészültség mellett a mindenkor hatályos jogszabályi és hatósági feltételeket is ellenőrizni kell.

Cikk elolvasása →
MAGÁNNYOMOZÁS · HU

A modern magánnyomozó módszerei: OSINT, HUMINT és ellenőrzés

A korszerű információgyűjtésben a nyílt források, az emberi kommunikáció és az adatok ellenőrzése egymást kiegészítő megközelítések.

Cikk elolvasása →
Considering a business proposal before accepting it
OSINT · Business

A polished website. A convincing offer. But who are you really doing business with?

Three practical starting points for checking business partners and offers — and what comes next.

Read article →
Investigator comparing documents and digital sources
OSINT · HUMINT · PDF

10 Things Every European Investigator Must Know

Ten principles for accurate, traceable investigative work — with a free downloadable guide.

Read article →
Tarkó Investigations OSINT lecture in Szeged
OSINT · Szeged

Strong interest in Tarkó Investigations’ OSINT lecture in Szeged

The interest in our programme at the University of Szeged reflects growing attention to the practical value of open-source information gathering.

Read article →
HUMINT és emberi források a magánnyomozásban
HUMINT · Emberi források

Amikor az internet már nem elég: az emberi forrás döntő ereje

Mit adhat hozzá a HUMINT egy olyan ügyhöz, amelyet a nyílt források önmagukban nem oldanak meg?

Cikk elolvasása →
OSINT a gyakorlatban – információgyűjtés és nyomozás
OSINT · Practical Applications

OSINT in Practice: Why Information Gathering Has Become an Essential Skill

How can OSINT support private investigation, HR, compliance, cybersecurity and better business decisions?

Read article →
OSINT és nyílt forrású információgyűjtés Európában
OSINT · Europe

What makes OSINT different in Europe?

European open-source research requires legal awareness, language sensitivity and careful documentation.

Read article →
GDPR és adatvédelem a magánnyomozásban
GDPR · Compliance

GDPR-aware investigation is a method, not an obstacle

Professional investigators must treat privacy, proportionality and documentation as part of the workflow.

Read article →
Magánnyomozói és információgyűjtési szakmai képzés
Training · Education

Why investigative thinking belongs in professional education

Source assessment, verification and structured reporting are valuable far beyond private investigation.

Read article →
Questions

FAQ for partners and learners

Who developed this course?

The course is created and presented by Dávid Komporday. The academic content and investigative methodology are based on Áron Tarkó’s research and professional expertise.

Is this only for private detectives?

No. It is designed for cybersecurity and infosecurity teams, compliance professionals, corporate investigators, educators, researchers, journalists, students and legal professionals.

Can universities integrate it into a programme?

Yes. It can be used as recommended learning, integrated into an existing module, developed into an elective or supported with guest lectures and workshops.

Can professional organisations resell or recommend it?

Yes. We can discuss member discounts, affiliate partnerships, bulk access, webinars, joint campaigns or speaking opportunities.

Is the course theoretical or practical?

It combines academic foundations with practical workflows: OSINT, HUMINT, verification, observation, documentation, reporting, GDPR, ethics and European case studies.

Who is Marek Marlow?

Marek Marlow is an AI-supported educational persona used in selected course materials and video introductions. The course itself is created by Dávid and based on Áron’s research and expertise.

Contact

Let’s discuss the right next step

Use this form for university collaboration, guest lectures, professional organisation partnerships, corporate training, speaking opportunities or individual course questions.

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Your enquiry has been received. We personally review every message and will get back to you shortly.
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We collect only the information you voluntarily submit through our forms.

  • Purpose: responding to enquiries, sending the guide, and discussing relevant learning or collaboration opportunities.
  • Data controller: Tarkó Investigations.
  • Contact: contact@tarko-investigations.com.
  • You may request access, correction or deletion of your data at any time.
  • We do not sell your personal data.

Terms & Conditions

This website and downloadable guide are provided for educational and informational purposes only.

  • Udemy enrolments are subject to Udemy’s own terms and conditions.
  • Academic, organisational or corporate collaborations are agreed separately in writing.
  • All course materials, guide content and website materials are protected by copyright.
  • Use of this website does not create a client relationship.