Gerrit E. van Heerden works as a consultant and educator in various fields of security, forensics, and crime scene investigation. In the behavioural and social sciences, he is especially dedicated in the multidisciplinary study of crime and abnormal behaviour. He has worked as a crime scene expert for the South African Police for 16 years, and he has also worked in the security industry for 16 years as a general manager and consultant for a major security company. His enthusiasm for people and society serves as a foundation for empowering and educating others to better themselves in a world where criminal activity is always evolving.