Modern technology has been responsible for a vast increase in the entertainment choices available to consumers, and the choice of media or format in which those choices can be enjoyed. In the early days of audio, the size and bulk, allied to the fact that the machines needed to be powered by electricity from the mains, meant that audio could only really be enjoyed in the home.

Now, the incredibly small, light, portable media players, powered by minuscule batteries, make it possible to enjoy audio virtually anywhere. Not only that, but the rise of the internet has made it possible to browse, select, pay for, and download entertainment all in one sitting on the same machine.

This has now made it possible to offer a full series of downloadable True Crime Audiobooks, which you can now listen to in virtually any situation, even while driving. These True Crime Audiobooks have also brought these books within the reach of visually impaired people, without the need for any special equipment, or the learning of Braille.

One of the True Crime Audiobooks which has now been made available is “Between Good And Evil”, which is the story of Roger I. Depue, a former Chief of the FBI Behavioral Science Unit, who was heavily involved in the development and use of criminal profiling techniques.

Roger I. Depue was working at the FBI when the techniques of criminal profiling first came to prominence. These techniques remain very controversial, and their efficacy is very hotly disputed amongst criminologists today. Basically the idea is to analyse the nature of crimes, and the nature of the criminal, in many different cases, and from that try to develop a statistical insight into the likely characteristics of an unknown criminal in a new case.

Also there is geographic profiling, which is used to create a 'heat map' of the most probable locations in which a criminal may live.

Roger Depue's book is autobiographical, and traces his development through childhood as the son of a police officer, through his early career in the Marines, and as a Sheriff of a small town. It covers the time when he first joined the FBI, the time he first became involved in criminal profiling, and the time after he had left the FBI and formed his own civilian consulting firm.

Do not buy this book if you are overly squeamish. Depue does go into some extremely horrific examples in very graphic detail. If you can live with that, and are genuinely interested in the development of criminal profiling, then this book is highly recommended as it comes straight from the heart of one of profiling's most influential figures.