Since 2009, International Relations scholars have researched the role of big advocacy groups in giving access to the Campaign to Stop Killer Robots in the United Nations Convention on Certain Conventional Weapons (CCW). To further these studies, the focus of this thesis is on the progress of negotiations for the 6-year period since the issue has been adopted, asking the question – How has the Campaign to Stop Killer Robots chosen to frame lethal autonomous weapons systems, and how successful has that framing been for the period of 2013 to 2019? I argue that advocates undertook a normative securitisation process to frame the existential threat lethal autonomous weapons systems (LAWS) pose to human beings. This argument is supported by a dual method research approach of 1) semi-structured elite interviews; and 2) qualitative content analysis of reports. The findings of this research show that, while the advocacy group has not achieved success in the form of a legally binding agreement at the CCW, they have successfully developed a process of moral stigmatization of LAWS that contributes to the creation of a new humanitarian security regime.