The use of private military and security companies (PMSCs) worldwide is increasing, and a growing number of states, international organizations, and humanitarian non-governmental organizations (NGOs) are contracting private military and security services to support their operations.

This Tool aims to provide simple, concise and practical guidance for states, international organizations, humanitarian organizations and NGOs on structuring their contracts and contracting procedures for private military and/or security services, drawing on international norms and standards.

It raises awareness on the key role of effective contracting processes which integrate respect for IHRL and IHL, based on lessons and good practices from existing contracting procedures.