This Tool is part of the DCAF, OSCE/ODIHR, UN Women Gender and Security Toolkit, which comprises nine Tools and a series of Policy Briefs. This new DCAF, OSCE/ODIHR and UN Women Gender and Security Toolkit draws together the key lessons of the past decade in promoting gender equality in security and justice. The aim of the Toolkit is to share new and emerging good practices, reflect upon how successes in increasing gender equality have been achieved, and push forward in thinking about integrating a gender perspective in security and justice sector institutions beyond simply increasing the number of women. While there has been a great deal of policy-making around gender equality and Women, Peace and Security, it has proved challenging to translate policy into better programmes and interventions in the security and justice sector. How can a gender perspective be comprehensively integrated? What does success look like? Many good knowledge products are available to guide programme and project gender evaluations. But gender evaluation relies upon a gender perspective being part of the monitoring of any programme or project. Most importantly, promoting gender equality and integrating a gender perspective must be part of how programmes and projects are designed. This Tool offers guidance on integrating gender in programme and project design and monitoring, with particular reference to lessons learnt and good practice working with and within the security and justice sector.