This book is an academic study of two of the major opponents of Western governments today. It examines both Narcotraffickers and Cartels and also Terrorists, mainly Islamic terrorists. Not only does it cover the methods and practices of these two criminal enterprises in their working practices, the book also examines the law enforcement approaches in dealing with the criminal organizations. It is a critique of both sets of parties and looks to ways that probably either side could use to improve methods either to evade capture or to capture and prosecute. Therefore the book could equally be relevant to a narcotrafficker or terrorist as to a law enforcement agent or politician. The running theme and idea in presenting these bodies that the text examines is to break their work up into ‘metis’ and ‘tecne’ – Metis is basically the active experience gained on the job and tecne is the set of skills required to work in an area. The balance of metis and tecne has to shift its balance according to the competitive adaptation of the enemy in order for success. For the Narcotraffickers the Colombian cartels are a priority case study with Pablo Escobar’s Medellin Cartel and also the Cali cartel examined in detail. Their opponents, the DEA, CIA, FBI US Army and Colombian security services, paramilitaries etc are looked at in their methods to disrupt global supply chains. Al Qaeda and Osama Bin Laden are the focus of the Islamic jihadi terrorists which utilise in many ways similar approaches to evading capture as do drug cartel employees although suicide bombs and cocaine are quite different commodities. The book is well-balanced, offers intelligent solutions and ideas and has a conclusion which neatly summarises the study’s findings.