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Basic Criminal Investigation Course

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Law and Public Policy

Criminal Law

Basic Criminal Investigation Course

For all levels

Basic Criminal Investigation Course

Name: Basic Criminal Investigation Course
Price: 54000 NGN

Master the full spectrum of criminal investigation — from securing a crime scene to delivering courtroom testimony. This course equips you with the processes, practices, and principles used by real investigators across every stage of a case. Whether you're entering law enforcement or advancing your career, you'll build the skills that hold investigations together.

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What you will learn:

Understand the legal, ethical, and historical foundations of criminal investigation.
Apply systematic crime scene search, documentation, and evidence collection protocols.
Identify, preserve, and submit physical and digital evidence using proper chain of custody procedures.
Interpret forensic science findings across pathology, DNA, trace evidence, and digital disciplines.
Conduct structured witness interviews and evidence-based suspect interrogations within legal boundaries.
Prepare case files, warrant applications, and courtroom testimony to support successful prosecution.

How you study in practice Basic Criminal Investigation Course

How you practise Basic Criminal Investigation Course

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Course content

8 Chapters • 40 LessonsDuration between 4 and 360 hours (you decide)

Chapter 1See details

Foundations of Criminal Investigation

Lesson 1 • Roles and Responsibilities of Investigators
Identifies the distinct functions of investigators across agencies and case types. Clarifies how roles interact within multidisciplinary investigative teams.
Lesson 2 • Legal Foundations of Investigative Authority
Covers the legal basis for investigative powers, including search authority, arrest powers, and due process requirements. Links legal constraints to daily investigative decisions.
Lesson 3 • Overview of the Investigative Process
Introduces the end-to-end investigative cycle from initial report to case closure. Sets the structural framework that subsequent chapters will develop in depth.
Lesson 4 • History and Evolution of Investigation
Traces the development of criminal investigation from informal community policing to modern forensic practice. Provides context for current methods and professional standards.
Lesson 5 • Ethics and Professional Conduct
Defines ethical obligations governing investigator behaviour, including impartiality, integrity, and accountability. Connects ethical standards to public trust and case outcomes.

Chapter 2See details

Crime Scene Management and Documentation

Lesson 1 • Crime Scene Search Methods
Teaches systematic search patterns used to locate physical evidence across varied environments. Connects search method selection to scene type and evidence distribution.
Lesson 2 • Photography and Videography of Scenes
Instructs on capturing accurate visual records of crime scenes using photography and video. Emphasises coverage sequence and technical standards for courtroom use.
Lesson 3 • Scene Documentation Reports
Guides students in compiling comprehensive scene documentation packages. Reinforces how thorough records support prosecution and withstand legal scrutiny.
Lesson 4 • First Response and Scene Security
Covers immediate actions taken upon arrival, including scene containment and witness separation. Establishes why first-responder decisions directly affect evidence quality.
Lesson 5 • Sketching and Mapping the Scene
Develops skills in producing accurate rough and finished crime scene sketches. Demonstrates how sketches complement photographs as permanent investigative records.

Chapter 3See details

Physical Evidence: Collection and Preservation

Lesson 1 • Collection Techniques by Evidence Type
Provides specific collection protocols for biological, chemical, digital, and impression evidence. Emphasises matching technique to evidence type to prevent contamination or loss.
Lesson 2 • Principles of Evidence Identification
Teaches how to recognise and classify physical evidence by type and evidentiary value. Grounds identification decisions in legal admissibility standards introduced in Chapter 1.
Lesson 3 • Chain of Custody Principles
Defines chain of custody requirements and documents every transfer of evidence. Demonstrates how custody gaps can invalidate evidence and compromise prosecutions.
Lesson 4 • Packaging, Labeling, and Sealing Evidence
Covers standardised packaging and labelling requirements for all evidence categories. Connects proper packaging to chain of custody integrity and courtroom defensibility.
Lesson 5 • Evidence Submission to the Laboratory
Guides students through the process of submitting evidence for forensic analysis. Covers submission forms, prioritisation, and communication with laboratory personnel.

Chapter 4See details

Forensic Science in Criminal Investigation

Lesson 1 • Fingerprint Science and Identification
Covers fingerprint classification, development techniques, and comparison standards. Demonstrates how latent print evidence is developed, documented, and submitted.
Lesson 2 • Digital Forensics Fundamentals
Introduces the acquisition and analysis of digital evidence from devices and networks. Establishes foundational concepts expanded in the supplementary digital chapter.
Lesson 3 • Forensic Pathology and Death Investigation
Introduces manner and cause of death determinations and the role of the medical examiner. Teaches investigators how to work effectively at death scenes and interpret autopsy findings.
Lesson 4 • Forensic Biology and DNA Analysis
Explains DNA typing methods, biological evidence interpretation, and database matching. Connects laboratory findings to suspect identification and case linkage.
Lesson 5 • Trace Evidence and Forensic Chemistry
Covers analysis of fibres, glass, soil, and controlled substances as trace evidence. Shows how trace findings corroborate or challenge investigative hypotheses.

Chapter 5See details

Witness Interviews and Suspect Interrogations

Lesson 1 • Interviewing Vulnerable Populations
Addresses specialised protocols for children, elderly individuals, and trauma survivors. Emphasises legal safeguards and trauma-informed communication approaches.
Lesson 2 • Evaluating Deception and Statement Analysis
Introduces verbal and nonverbal indicators associated with deception and statement inconsistency. Teaches critical evaluation of statements against known evidence.
Lesson 3 • Suspect Interrogation Principles
Covers ethical, evidence-based interrogation frameworks that minimise false confessions. Distinguishes lawful interrogation from coercive practices prohibited by due process standards.
Lesson 4 • Psychology of Witness Memory
Examines how memory encoding, storage, and retrieval affect witness accuracy. Grounds interview technique selection in cognitive science to improve information quality.
Lesson 5 • Structured Witness Interview Techniques
Teaches the cognitive interview method and open-ended questioning strategies. Connects technique to maximising accurate recall while preserving witness credibility.

Chapter 6See details

Investigative Leads, Records, and Intelligence

Lesson 1 • Intelligence-Led Investigative Strategies
Applies intelligence analysis principles to focus investigative resources on high-value targets. Introduces crime mapping and pattern analysis as strategic planning tools.
Lesson 2 • Records and Database Searches
Covers access to and analysis of criminal history, financial, and public records. Demonstrates how records searches reveal suspect background, associations, and patterns.
Lesson 3 • Developing and Prioritising Leads
Defines investigative leads and teaches systematic methods for generating and ranking them. Connects lead management to efficient resource allocation and case momentum.
Lesson 4 • Informants and Confidential Sources
Examines the use, management, and legal obligations associated with confidential informants. Balances operational value against ethical and safety risks.
Lesson 5 • Surveillance Techniques and Applications
Introduces stationary and mobile surveillance methods used to gather behavioural intelligence. Addresses legal authority requirements and documentation standards for surveillance operations.

Chapter 7See details

Case Management and Investigative Documentation

Lesson 1 • Tracking Investigative Progress
Introduces tools and methods for monitoring case milestones, deadlines, and outstanding tasks. Demonstrates how progress tracking prevents investigative gaps and missed opportunities.
Lesson 2 • Disclosure and Case Handoff Procedures
Covers obligations to disclose evidence to prosecutors and defence, and procedures for transferring cases. Addresses legal consequences of incomplete or delayed disclosure.
Lesson 3 • Investigative Report Writing Standards
Teaches the structure, language, and accuracy requirements of professional investigative reports. Emphasises factual, objective writing that meets legal and organisational standards.
Lesson 4 • Case File Organisation and Management
Covers methods for organising physical and digital case files for efficient retrieval and review. Connects file discipline to team coordination and prosecutorial handoff.
Lesson 5 • Affidavits and Warrant Applications
Guides students in drafting legally sufficient affidavits to support search and arrest warrants. Connects probable cause standards from Chapter 1 to practical document preparation.

Chapter 8See details

Prosecution Preparation and Courtroom Testimony

Lesson 1 • Coordinating Forensic Expert Witnesses
Covers the selection, briefing, and coordination of forensic experts for trial testimony. Ensures investigators can translate scientific findings into accessible courtroom narratives.
Lesson 2 • Investigator Testimony Preparation
Develops skills for delivering clear, credible, and professional testimony under direct and cross-examination. Addresses note review, demeanour, and handling aggressive questioning.
Lesson 3 • Organising Evidence for Court Presentation
Teaches how to compile, index, and present physical and digital evidence for courtroom use. Addresses exhibit marking, chain of custody verification, and presentation sequencing.
Lesson 4 • Working with Prosecutors and Legal Teams
Defines the investigator's role in supporting prosecution from charge filing through trial. Covers communication protocols and joint case preparation strategies.
Lesson 5 • Post-Trial Review and Case Lessons
Guides structured review of case outcomes to identify investigative strengths and improvement areas. Connects reflective practice to continuous professional development.

Certification

Your valid completion certificate

This course is for you:

Aspiring detectives: eager to understand how professional investigations are structured.
Criminal justice students: building practical knowledge alongside their academic coursework.
Patrol officers: preparing to transition into a dedicated investigative assignment.
Security professionals: expanding their skill set into formal investigative methodology.
True crime enthusiasts: seeking rigorous, professional insight beyond surface-level coverage.
Career changers: entering law enforcement or public safety from unrelated professional backgrounds.

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