Has the Firearms Protocol helped reduced violence?

This paper focuses on thelong-term objective of the Firearms Protocol supplementing the United Nations Convention against Transnational Organized Crime to reduce certain kinds of armed violence associated with the misuse of firearms. More than 15 years after the Protocol has comeinto force, the authors ask how its possible impacts on armed violence might be assessed; indicate key challenges for such an enterprise, and suggest directions for future work in this area, towards the establishment of a measurement tool which could helpinform the recently established Review Mechanism of the Protocol.