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Our Courses & Guides

Our private investigation courses and guides are designed for anyone looking to start a new career, enhance their existing skills, or simply gain in-depth, practical knowledge of the private investigations industry.

Built from nearly 20 years of real-world experience by a working investigator, our programmes combine strong legal foundations with modern techniques that are used every day in the field.

Ideal for:

Police officers and military personnel approaching resettlement
Security professionals wanting to specialise
Career changers seeking an independent and rewarding new path
Anyone who wants to develop sharp investigative, analytical, and people-reading skills

Whether you want a complete professional diploma or focused specialist modules, our courses are practical, up-to-date, and designed to give you the confidence and knowledge needed to succeed.

Start Your Journey to enchance or begin a new career

Lewis Legal Ltd Educational Training Courses and Guides offering Lewis Legal Ltd Diploma and Lewis Legal Ltd CPD Hours

Professional Training for Aspiring Investigators

I have developed a complete range of practical training courses based on real-world experience.

Our flagship programme is:

The Complete 20-Module Private Investigator Diploma Course

This course is built directly on the respected EDI Level 3 Professional Private Investigators syllabus and significantly expanded with modern, practical content. It includes everything needed to prepare you for a successful career in private investigation.

Key areas covered include:

Core private investigation techniques (as per the original EDI Level 3)
Advanced surveillance and counter-surveillance
Matrimonial, infidelity and relationship investigations
Commercial investigations
Criminal defence support and miscarriage of justice casework
Interviewing techniques and statement analysis
Body language and linguistic analysis for detecting deception
Legal Process Serving in the UK (statements of service, affidavits, health & safety)
Setting up and running your own successful PI business
Current UK laws and professional standards (how to stay compliant and avoid legal issues)

The course awards our in-house Lewis Legal Ltd Diploma plus 185+ CPD hours on successful completion.

Complete Professional Private Investigators Lewis Legal Ltd Diploma and CPD Hours

£895.00

Covert Surveillance and Counter Surveillance

£65.00

Claim Compensation for Covid Vaccine Damage in the UK - Have you been left injured by the Covid Vaccine? Have you been left 60% disabled? If yes please proceed

£9.99

Yes! They're Cheating

£5.00

Read the Room: Master Body Language & Linguistic Analysis

£395.00

Gathering Evidence of Cheating Partners and Staying Out of Prison Whilst Doing it

£65.00

Investigation Courses, Modules and Guides

Lewis Legal Ltd has evolved into the UK's Premier Private Investigations Company into Miscarriages of Justic celebrating almost eighteen years since formation.

We now aim to provide professional level, full Courses for aspiring investigators, Modules for those who wish to expand their knowledge

and Guides to assist you with you life and career.

Click here to see what Lewis Legal Ltd can offer you

Important Terms and Conditions

Terms and Conditions Lewis Legal Ltd Online Courses

Last updated: June 2026

1. Acceptance of Terms By purchasing or accessing any online course offered by Lewis Legal Ltd, you agree to be bound by these Terms and Conditions.

2. Nature of the Courses and Certification All courses provided by Lewis Legal Ltd are in-house training programmes. Upon successful completion, you will receive a Lewis Legal Ltd Certificate of Completion.

This certificate is not a nationally accredited qualification, diploma, or regulated professional certification. It confirms completion of our internal training programme only and does not confer any official regulatory status or special legal powers.

3. Important Legal Disclaimer Michael T. Naughton and Lewis Legal Ltd are not lawyers and do not provide legal advice or legal services. The courses have been prepared and presented based on current law in England and Wales (particularly criminal law and investigative procedure).

Laws differ between jurisdictions. It is your sole responsibility to research and comply with the laws that apply in your own country or region. Completion of this course does not qualify you as a licensed or regulated private investigator in any jurisdiction.

4. Course Access Access to course materials is provided through Payhip. Your access is personal and non-transferable. Sharing login details or allowing third-party access is strictly prohibited.

5. Payments and Refunds All payments are processed securely via Payhip. Due to the digital nature of the courses, refunds are at the sole discretion of Lewis Legal Ltd and are generally not offered once access has been granted.

6. Intellectual Property All course materials are the intellectual property of Lewis Legal Ltd. You are granted a limited, non-exclusive licence for personal use only. Unauthorised copying, sharing, or distribution is prohibited.

7. Student Conduct You agree to use the courses lawfully and respectfully. Any abusive behaviour or attempts to circumvent protections will result in immediate termination of access without refund.

8. Limitation of Liability The courses are provided for educational purposes only. Lewis Legal Ltd and its instructors shall not be liable for any loss, damage, or legal consequences arising from your use of the information provided. You use the material entirely at your own risk.

9. Governing Law These Terms and Conditions are governed by the laws of England and Wales.

10. Changes to Terms We reserve the right to update these Terms. Continued use of the courses after changes constitutes acceptance of the updated terms.

Questions? If you have any questions about these Terms and Conditions, please contact us before purchasing.