ABSTRACT
This chapter outlines the way in which terrorist groups and individual terrorists communicate in the 21st Century. Concentrating on the terrorist group Islamic State (IS) as a case study, it highlights the interdisciplinary relationships formed between the group and its individual supporters and cells, by utilising digital means. The chapter explores the vertical effect of the group's propaganda and communication through the Internet, and how this impacts upon the current risk posed to UK security by terrorists. It then places emphasis on the legal efforts made by the UK to combat the collection of terrorist materials, the dissemination of such and efforts to prohibit direct and indirect encouragement to commit a terrorist act. The chapter discusses the effects of terrorist communication in radicalising citizens to commit acts of terrorism, showing a worrying trend in jihadi tourism and increased individual operational abilities.
