## 1 Introduction
Here we aim to contribute to the field of violence reduction by reporting on a novel implementation of EBCD in this context, and to the development of EBCD itself, by discussing the approach in the context of a conceptual framework which helps us to consider how EBCD work shifts the traditional relationship between'service provider' and'service user'. EBCD has been used in a range of community contexts (physical healthcare, mental healthcare, learning disability, interventions research) to collaboratively create a wide range of 'things'--information resources, service improvements, built environments, implementation pathways (e.g., see [PERSON] et al. 's synthesis [15], and [PERSON] et al. 's review [13]). For example, a survey has found that EBCD projects have been undertaken in the following range of clinical services: cancer, diabetes, genetics, drug and alcohol services, intensive care, emergency services, palliative care, orthopedics, surgical units, hematology, and neonatal and pediatric care [13]. The findings of the survey have also demonstrated that at the time it was conducted, EBCD projects were either achieved or being conducted in the following countries: UK, Canada, New Zealand, Australia, Sweden, and the Netherlands [13]. EBCD has not previously been implemented in the context of policing and domestic abuse and so our primary purpose in this paper is to describe the process that we undertook, and to reflect upon the acceptability and feasibility [16] of this approach for community-based approaches which involve a range of partner-organizations. Thus, the project described here increases our knowledge of how EBCD works, for whom, and in what contexts, especially surrounding the issues involving domestic abuse. This paper aims to answers the research question, 'Is it feasible and acceptable to conduct EBCD in the field of domestic violence?'. Our project took place in a major conurbation in England. The conurbation is ethnically diverse. It has been undergoing a long transition from an economy based on heavy industry to a much more mixed economy. It was jointly commissioned by a Police and Crime Commissioners Office and a local police force. The project was initially commissioned to explore satisfaction of domestic abuse survivors with their services and to use these findings to provide recommendations for service improvements. The local police force approached researchers at the University of Birmingham in 2015 with proposals for a survey of domestic abuse survivors. Through discussion with representatives of the police force, it was agreed instead to use an EBCD framework, first to understand the experiences of survivors, and then to collaboratively plan service developments. As partial funding came from the local police force, the study was based in the region covered by its service. EBCD begins with a phase of finding out about people's experience of a particular process or environment. These insights are organized as 'touchpoints'--features of an environment or process that make a difference to people's experience. EBCD then moves to a 'feedback' phase, which involves consulting with the different stakeholder groups to discuss the touchpoints and generate consensus about what needs to change. These stakeholder groups may include patients, staff, and carers. It concludes with a co-design phase, where the different stakeholders work together to decide how to make improvements, and who should make them. In this way, the different stakeholders in a given community work together to identify things which could be improved, and they continue to collaborate in order to decide how to make those improvements. An EBCD approach prompts us to reflect upon help-seeking as a systemic and relational activity precisely because it brings together different stakeholders. The involvement of survivors from different communities prompts us to consider accessibility and knowledge.