Complete Professional Lewis Legal Ltd Diploma in Private Investigators Course and Lewis Legal Ltd - 185 CPD Hours

Comprehensive training designed for police officers leaving service, military veterans, and career changers looking to start a rewarding, independent career in private investigation.

Complete Professional Private Investigators

What this course can offer you

Become a Professional Private Investigator – Complete Career Training Course With Our Lewis Legal Ltd Diploma and CPD Hours

This course has been prepared in line with the recognised EDI Level 3 - The Professional Private Investigators Course along with additional modules to prepare a student with the knowledge they need to begin a new career.

This comprehensive, practical course is designed to take you from complete beginner to confident, job-ready Private Investigator.

Whether you’re a service leaving police officer, military veteran, or simply looking for a rewarding new career with independence and excellent earning potential, this course gives you the real-world skills, legal knowledge, and professional standards needed to succeed in the private investigation industry.

You will learn:

How to legally and ethically conduct surveillance, interviews, and investigations
Domestic infidelity and relationship investigations
Advanced statement analysis and deception detection
Miscarriage of justice and appeal casework
Setting up and running your own successful PI business
Essential tools, technology (including AI), and fieldcraft

Written by an experienced investigator with decades in the field, this course combines strong legal foundations with practical techniques used every day in the industry.

Ideal for:

Police officers and military personnel transitioning to civilian careers
Security professionals
Anyone seeking a flexible, independent, and intellectually stimulating new career

Gain the knowledge, confidence, and credibility to start working as a professional private investigator — whether part-time or full-time.

Course curriculum

1

First Section
- An Introduction to Private Investigations UK/Worldwide Free Preview
- Module 1 – Introduction to the Role of a Private Investigator Free Preview
- Module 2 – Assessing Information, Critical Thinking, and Casework Organisation
- Module 3 – Structured Casework, Documentation, and Report Writing
- Module 4 – Covert Surveillance and Counter-Surveillance
- Module 5 – Witness Interviewing, Rapport Building, and Negotiation Techniques
- Module 6 – Professionalism, Confidentiality, and Legal Compliance in Investigations
- Module 7 – Legal and Ethical Considerations in Private Investigations
- Module 8 – Handling Unpredictable Situations and Overcoming Obstacles in Investigations
- Module 9 – Managing Investigations as a Freelancer or Agency Investigator
- Module 10 – Technology in Private Investigations: Digital Forensics, Surveillance, and Databases
- Module 11 – Setting Up Your Private Investigations Business or Bureau
- Module 12 – Core Legal Frameworks and Interview Techniques in Private Investigation
- Module 13: Interview Techniques and the Detection of Lies
- Module 14: Legal Boundaries – Cautions, Arrests, and Tracking Devices
- Module 15: Domestic Investigations – Infidelity, Ethics, and Client Management
- Module 16: Miscarriage of Justice Investigations in the UKNew Lesson
- Module 17: The National College of Policing (UK) – Standards, Ethics, and Application for Private Investigators
- Module 18 – Process Serving in the UK: Law, Practice, Statements of Service, Affidavits & Health & Safety
- Module 19: Useful Websites and Online Tools for Investigators (Worldwide – English)
- Module 20: The Practical Tools of a Private Investigator
- End of Course Exam 80% pass mark is required

Start Your New Career

Lewis Legal Ltd Diploma - Complete Private Investigators Course

£895

This is a heavily discounted course with a fee of £895.00

The course as of the 1st July 2026 will be £1295.00