
Investigation Course
Master the full investigative process — from planning and evidence collection to analysis and final reporting. This course gives you the practical skills and ethical framework to conduct credible, defensible investigations across workplace, financial, and complex case environments. Whether you're new to investigations or sharpening existing skills, this is the professional foundation you need.
What you will learn:
You will learn how to plan and structure investigations, collect and preserve physical, digital, and documentary evidence, and conduct effective interviews with witnesses and subjects. The course covers open-source intelligence gathering, surveillance techniques, financial crime detection, and document authentication. You will develop strong analytical skills to build case theories and test them against evidence. You will also learn how to write professional investigation reports and present findings to senior stakeholders. Specialized modules address workplace investigations, digital forensics, and managing high-stakes or sensitive cases.
How you study in practice Investigation Course
How you practise Investigation Course
For companies looking to train their team
With Dedika for Business, the course includes exercises and examples tailored to your own business and the way your company needs.
Course Content
8 Chapters • 39 LessonsDuration between 4 and 360 hours (you decide)
Chapter 1HideHide detailsSee detailsFoundations of Professional Investigation
Foundations of Professional Investigation
Lesson 1 • Legal Boundaries and Investigator Authority
Outlines the legal constraints within which investigators operate, including privacy rights and admissibility requirements. Prevents procedural errors that invalidate findings.
Lesson 2 • Investigation Planning Fundamentals
Introduces structured planning as the foundation of effective investigations. Students draft a basic investigation plan covering scope, objectives, and resource needs.
Lesson 3 • Ethical Obligations and Professional Standards
Covers impartiality, confidentiality, and duty of care as non-negotiable investigative values. Connects ethical conduct to credible, defensible outcomes.
Lesson 4 • Nature and Purpose of Investigations
Defines investigation as a systematic fact-finding process and distinguishes it from audits and inspections. Grounds all subsequent techniques in a shared professional vocabulary.
Chapter 2HideHide detailsSee detailsEvidence: Collection, Handling, and Preservation
Evidence: Collection, Handling, and Preservation
Lesson 1 • Chain of Custody and Evidence Integrity
Establishes chain-of-custody documentation as the mechanism that protects evidence integrity. Students complete custody logs and packaging exercises.
Lesson 2 • Types and Classification of Evidence
Categorizes evidence as physical, documentary, digital, and testimonial, explaining the evidentiary weight of each. Provides the taxonomy used throughout the course.
Lesson 3 • Lawful Evidence Collection Methods
Teaches scene examination, document seizure, and observation techniques within legal boundaries. Connects collection method to downstream admissibility.
Lesson 4 • Evidence Evaluation and Reliability
Teaches criteria for assessing evidence reliability, relevance, and sufficiency. Students practice evaluating evidence sets against investigation objectives.
Lesson 5 • Digital Evidence Fundamentals
Introduces forensic principles for preserving digital evidence without alteration. Covers write-blocking, imaging, and hash verification at a practitioner level.
Chapter 3HideHide detailsSee detailsInterviewing Witnesses and Subjects
Interviewing Witnesses and Subjects
Lesson 1 • Interview Planning and Preparation
Covers pre-interview research, objective setting, and logistical preparation. Proper planning directly determines the quality of information obtained.
Lesson 2 • Recording, Documenting, and Reviewing Interviews
Establishes standards for recording consent, note-taking, and transcript review. Accurate documentation preserves the evidentiary value of interview content.
Lesson 3 • Cognitive and Behavioral Interview Techniques
Introduces evidence-based methods for maximizing recall accuracy without suggestion or coercion. Students practice open-ended questioning and active listening.
Lesson 4 • Interviewing Reluctant or Hostile Subjects
Addresses strategies for building rapport and managing resistance during adversarial interviews. Connects subject management to ethical and legal obligations.
Lesson 5 • Detecting Deception and Inconsistency
Examines behavioral and verbal indicators of deception while cautioning against over-reliance on any single cue. Students analyze interview transcripts for inconsistencies.
Chapter 4HideHide detailsSee detailsDocument Examination and Analysis
Document Examination and Analysis
Lesson 1 • Locating and Requesting Documents
Covers formal and informal mechanisms for obtaining records from internal and external sources. Establishes lawful request procedures that protect evidentiary value.
Lesson 2 • Organizing and Managing Document Sets
Covers indexing, coding, and retrieval systems for large document collections. Efficient management reduces analytical errors and speeds report preparation.
Lesson 3 • Timeline Reconstruction from Documents
Teaches chronological mapping of events using document dates, metadata, and cross-references. A reconstructed timeline becomes a core analytical tool in the report.
Lesson 4 • Document Authentication Techniques
Teaches methods for verifying document origin, date, and integrity, including metadata review and physical examination. Distinguishes authentic from altered records.
Lesson 5 • Financial and Transaction Record Analysis
Introduces techniques for tracing financial flows, identifying anomalies, and mapping transaction patterns. Directly supports fraud and misconduct investigations.
Chapter 5HideHide detailsSee detailsSurveillance and Open-Source Intelligence
Surveillance and Open-Source Intelligence
Lesson 1 • Physical Surveillance Techniques
Covers mobile and static surveillance methods, counter-surveillance awareness, and operational security. Students plan a simulated surveillance operation.
Lesson 2 • Legal Framework for Surveillance
Defines the legal boundaries of physical and electronic surveillance, including consent and authorization requirements. Prevents evidence exclusion through procedural compliance.
Lesson 3 • Digital Footprint Analysis
Teaches analysis of online identities, network connections, and behavioral patterns from digital traces. Supports subject profiling and link analysis.
Lesson 4 • Open-Source Intelligence Collection
Introduces systematic OSINT methods using publicly available sources including social media, registries, and databases. Connects collection to analytical objectives.
Lesson 5 • Surveillance Logs and Operational Reports
Establishes standards for recording surveillance observations in real time and compiling operational reports. Accurate logs are essential for evidentiary use.
Chapter 6HideHide detailsSee detailsAnalysis, Hypothesis Testing, and Case Theory
Analysis, Hypothesis Testing, and Case Theory
Lesson 1 • Hypothesis Development and Testing
Applies structured analytic techniques to generate, rank, and test competing hypotheses against evidence. Reduces cognitive bias in conclusion formation.
Lesson 2 • Structuring the Analytical Process
Introduces a repeatable analytical workflow from evidence inventory to conclusion. Provides the cognitive scaffold for all subsequent analytical work.
Lesson 3 • Building and Communicating Case Theory
Guides students in articulating a coherent case theory supported by evidence and logical reasoning. A well-formed theory drives the investigation report and recommendations.
Lesson 4 • Link Analysis and Pattern Recognition
Teaches visual mapping of relationships between people, entities, and events to reveal hidden connections. Students build link charts from case data.
Lesson 5 • Cognitive Bias Recognition and Mitigation
Identifies common biases—confirmation, anchoring, and tunnel vision—that distort investigative conclusions. Students apply debiasing techniques to case scenarios.
Chapter 7HideHide detailsSee detailsInvestigation Report Writing
Investigation Report Writing
Lesson 1 • Report Review, Quality Assurance, and Security
Establishes peer review, supervisor sign-off, and secure distribution protocols for final reports. Protects report integrity and confidentiality post-completion.
Lesson 2 • Recommendations and Remedial Actions
Covers formulating actionable, proportionate recommendations tied directly to investigation findings. Connects report output to organizational decision-making.
Lesson 3 • Writing Findings and Conclusions
Guides precise drafting of factual findings and evidence-based conclusions using clear, unambiguous language. Students practice converting analytical outputs into report text.
Lesson 4 • Report Structure and Professional Standards
Establishes the standard components of an investigation report and the professional writing norms that govern them. Provides the template used in all report exercises.
Lesson 5 • Presenting Evidence in the Report
Teaches how to reference, summarize, and exhibit evidence within the report narrative. Proper evidence presentation supports the credibility of every finding.
Chapter 8HideHide detailsSee detailsComplex and High-Stakes Investigations
Complex and High-Stakes Investigations
Lesson 1 • Strategic Review and Lessons Learned
Guides post-investigation review to extract systemic lessons and improve future practice. Connects individual case outcomes to organizational learning and policy improvement.
Lesson 2 • Managing Multi-Strand Investigations
Addresses coordination challenges when multiple lines of inquiry run simultaneously. Students assign workstreams, track progress, and integrate findings across strands.
Lesson 3 • Sensitive and High-Profile Case Management
Covers protocols for investigations involving senior personnel, media exposure, or significant reputational risk. Emphasizes stakeholder communication and information control.
Lesson 4 • Corruption and Insider Threat Investigations
Applies investigative techniques to internal misconduct scenarios where subjects have privileged access. Addresses containment, covert inquiry, and evidence preservation under risk.
Lesson 5 • Cross-Functional and Multi-Agency Coordination
Teaches information-sharing protocols, joint investigation agreements, and role delineation in multi-agency contexts. Prevents jurisdictional conflicts and evidence contamination.
Your valid completion certificate
This course is for you:
HR professionals: frequently assigned investigations without dedicated investigative training or tools.
Compliance officers: responsible for misconduct inquiries but lacking a structured methodology.
Security managers: handling internal threats and needing legally sound collection procedures.
Fraud examiners: looking to broaden skills beyond financial analysis into full case management.
Career changers: moving into investigations from law, policing, auditing, or risk management.
Team leaders and managers: occasionally tasked with workplace inquiries and needing reliable guidance.
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