Introduction to Conducting Private Investigations: Private Investigator Entry Level (02E) (2022 Edition)

I, Spy: How to Be Your Own Private Investigator

How to Open & Operate a Financially Successful Private Investigation Business

Spy the Lie: Former CIA Officers Teach You How to Detect Deception

Legal Responses to Transnational and International Crimes: Towards an Integrative Approach

Liespotting: Proven Techniques to Detect Deception

The Everything Private Investigation Book: Master the techniques of the pros to examine evidence, trace down people, and discover the truth

Dark Wire: The Incredible True Story of the Largest Sting Operation Ever

Blind Faith

Lethal Force: My Life As the Met’s Most Controversial Marksman

The United Nations: A Very Short Introduction

Overkill

The Secrets of the FBI

On the Line: Life – and death – in the Metropolitan Police

Blackstone's Police Operational Handbook 2013: Law: Edition 7

A Higher Loyalty: Truth, Lies, and Leadership

The SAGE Handbook of Global Policing

With Liberty and Justice for Some: How the Law is Used To Destroy Equality and Protect the Powerful

A Guarded Life: My story of the dark side of An Garda Síochána

Get the Truth: Former CIA Officers Teach You How to Persuade Anyone to Tell All