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Infidelity Investigation Course
Over 2 million learners across the globe

Infidelity Investigation Course

Learn to conduct professional infidelity investigations from intake to final report. This course covers surveillance techniques, digital evidence collection, legal boundaries, and client management — everything you need to work real cases with confidence and credibility. Build the skills that get results and hold up in court.

Dedika for businesses

What you will learn:

You will learn how to legally gather and document evidence of infidelity using surveillance, open-source intelligence, and digital investigation methods. The course covers how to profile subjects, plan field operations, and capture photo and video evidence that meets evidentiary standards. You will also learn how to conduct structured client interviews, manage emotionally sensitive cases, and deliver findings professionally. Advanced modules cover covert technology, financial infidelity, and digital forensics. By the end, you will know how to build a complete case docket and support legal proceedings as a credible investigator.

How you study practically Infidelity Investigation Course

How you practise Infidelity Investigation Course

For companies looking to train their teams

With Dedika for businesses, the course includes exercises and examples tailored to your own business and the way your company needs.

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Course content

8 Chapters • 33 LessonsDuration between 4 and 360 hours (you decide)

Chapter 1See details

Foundations of Infidelity Investigation

  • Lesson 1 • Evidence Standards and Admissibility

    Introduces what constitutes usable evidence in civil and family proceedings. Grounds all subsequent fieldwork in outcome-oriented evidence thinking.

  • Lesson 2 • Case Intake and Client Assessment

    Teaches structured intake interviews and emotional screening of clients. Ensures investigators accept only viable, legally sound cases.

  • Lesson 3 • Legal and Ethical Boundaries

    Covers privacy laws, consent requirements, and ethical obligations governing evidence collection. Prevents illegal conduct that would invalidate findings or create liability.

  • Lesson 4 • Defining the Investigator's Role

    Clarifies what infidelity investigators do versus what licensed private investigators do. Sets professional identity and realistic case expectations from the start.

Chapter 2See details

Subject Research and Background Profiling

  • Lesson 1 • Public Records and Database Research

    Teaches access to court records, property records, and business filings to build factual subject profiles. Reveals assets, addresses, and associates relevant to the case.

  • Lesson 2 • Open-Source Intelligence Fundamentals

    Introduces OSINT principles applied to individual subjects. Connects background research to pattern recognition used throughout the investigation.

  • Lesson 3 • Social Media Profiling Techniques

    Covers systematic review of public social media for behavioural clues and contact mapping. Feeds directly into identifying persons of interest and locations.

  • Lesson 4 • Establishing a Behavioural Baseline

    Synthesises research into a documented routine profile of the subject. This baseline is the reference point for detecting deviations during surveillance.

Chapter 3See details

Surveillance Planning and Preparation

  • Lesson 1 • Cover Stories and Disguise Basics

    Develops believable cover identities and appearance adjustments for field operatives. Maintains investigator anonymity across repeated visits to the same area.

  • Lesson 2 • Surveillance Types and Selection

    Compares stationary, mobile, and technical surveillance and their appropriate use cases. Matching method to case type prevents wasted resources and detection.

  • Lesson 3 • Operational Planning and Briefing

    Structures a written surveillance plan including objectives, roles, timing, and abort criteria. Ensures all team members operate from a shared, documented mission framework.

  • Lesson 4 • Pre-Surveillance Location Reconnaissance

    Teaches advance scouting of target locations to identify observation points and escape routes. Reduces improvisation and detection risk during live operations.

Chapter 4See details

Field Surveillance Techniques

  • Lesson 1 • Counter-Surveillance Awareness

    Identifies behaviours indicating the subject suspects surveillance and teaches appropriate responses. Protects case integrity and investigator safety when detection risk rises.

  • Lesson 2 • Mobile Vehicle Surveillance

    Teaches single-vehicle and multi-vehicle follow techniques, gap management, and traffic navigation. Enables continuous subject coverage across urban and suburban environments.

  • Lesson 3 • Foot Surveillance in Urban Environments

    Develops pedestrian follow skills including pace matching, parallel routes, and hand-offs. Extends coverage into locations inaccessible to vehicles.

  • Lesson 4 • Stationary Surveillance Execution

    Covers vehicle and foot-based fixed observation posts, positioning, and endurance tactics. Builds the core skill of sustained, undetected observation from a fixed point.

Chapter 5See details

Photography and Video Evidence Collection

  • Lesson 1 • Camera Equipment Selection and Setup

    Covers camera types, lens selection, and covert housing options suited to infidelity fieldwork. Proper equipment choice determines image quality and operational concealment.

  • Lesson 2 • Evidence Authentication and Chain of Custody

    Establishes procedures for hashing, logging, and storing media files from capture to delivery. Authenticated media withstands legal challenge and client scrutiny.

  • Lesson 3 • Photography Techniques in the Field

    Teaches exposure settings, focus techniques, and framing for low-light and long-distance shots. Ensures images are sharp, identifiable, and contextually clear.

  • Lesson 4 • Video Recording Best Practices

    Covers continuous recording protocols, stabilisation, and audio capture rules. Video evidence must show unbroken, authenticated sequences to be credible.

Chapter 6See details

Digital and Device Investigation Methods

  • Lesson 1 • Legal Boundaries of Digital Investigation

    Defines what digital access is lawful for non-law-enforcement investigators and what constitutes unauthorised access. Prevents criminal exposure before any digital work begins.

  • Lesson 2 • Email and Cloud Account Indicators

    Teaches identification of suspicious email patterns and cloud storage activity using authorised access. Links digital behaviour to physical surveillance findings.

  • Lesson 3 • Analysing Shared Device Activity

    Covers review of browser history, app usage, and communication logs on devices the client has lawful access to. Extracts behavioural patterns without violating access laws.

  • Lesson 4 • GPS and Location Data Analysis

    Covers lawful use of vehicle GPS devices and location history from shared accounts. Converts location data into timeline evidence supporting or refuting subject alibis.

Chapter 7See details

Interview and Source Development

  • Lesson 1 • Detecting Deception in Interviews

    Introduces behavioural and linguistic indicators of deception in verbal accounts. Improves accuracy of information assessment from all human sources.

  • Lesson 2 • Developing and Managing Informants

    Covers ethical recruitment, handling, and protection of voluntary informants close to the subject. Informant intelligence can confirm or redirect surveillance priorities.

  • Lesson 3 • Witness and Neighbour Contacts

    Teaches lawful approaches to neighbours, coworkers, and acquaintances as information sources. Expands the evidence base beyond client testimony and direct observation.

  • Lesson 4 • Structured Client Interviewing

    Applies cognitive interview principles to extract detailed, accurate client accounts. Accurate client information reduces wasted surveillance time and misdirected effort.

Chapter 8See details

Case Reporting and Client Delivery

  • Lesson 1 • Writing Clear Factual Narratives

    Teaches objective, precise language for describing observations without opinion or inference. Factual narratives protect the investigator from legal challenge and misinterpretation.

  • Lesson 2 • Testifying and Supporting Legal Proceedings

    Prepares investigators to present findings in depositions, mediation, or court as expert witnesses. Credible testimony amplifies the value of a well-documented investigation.

  • Lesson 3 • Compiling and Presenting Evidence Packages

    Covers organisation of photos, video, logs, and digital artifacts into a coherent evidence package. Proper packaging ensures clients and attorneys can navigate findings efficiently.

  • Lesson 4 • Investigative Report Structure

    Defines the components of a professional investigation report including summary, methodology, findings, and evidence index. A well-structured report communicates credibility and thoroughness.

  • Lesson 5 • Client Debrief and Emotional Management

    Prepares investigators to deliver difficult findings with professionalism and empathy. Managing client emotional responses protects both the client and the investigator's reputation.

Certification

Your valid completion certificate

This course is for you:

  • Aspiring private investigators: seeking a specialized niche with strong client demand.

  • Divorce attorneys: wanting to understand investigative methods their clients may use.

  • Security professionals: looking to expand services into personal investigation cases.

  • Concerned individuals: needing structured methods to assess a personal situation responsibly.

  • Career changers: drawn to investigative work and ready to build foundational field skills.

  • Law enforcement veterans: transitioning into civilian investigative practice after leaving the force.

What our students say

Your lessons are perfect. I purchased the one-year package and finally have the opportunity to follow various topics of my interest without needing to change platforms... I thank you for everything you do, I've already recommended you to other people...
Giulio Carlo
Giulio CarloDigital Marketing Student
I like how the lessons are straight to the point and how I can change chapters and skip content I don't need.
Mariana Ferres
Mariana FerresPhotography Student
I like the content and the way videos are presented and transcribed, which speeds up the process!
Luciana Alvarenga
Luciana AlvarengaNail Design Student
The platform is fast, simple to use. The diversity of content and complementary videos help a lot with learning.
André Felipe
André FelipePrompt Engineering Student

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