TY - JOUR SN - 0047-2352 N1 - © The Author(s), 2024. This is an Open Access article distributed under the terms of the Creative Commons Attribution Licence (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. https://creativecommons.org/licenses/by/4.0/ ID - discovery10192439 AV - public JF - Journal of Criminal Justice N2 - Purpose: Multi-agency initiatives as a response to complex crimes, such as stalking, pose conceptual and operational challenges for practitioners and evaluators. This study addresses these challenges, by combining a theory of change driven approach with the realist-inspired EMMIE evaluation framework to present findings from a pilot multi agency stalking intervention partnership in England and Wales.// Methods: The study uses a mixed methods approach based on analysis of police data and semi-structured interviews with stakeholders to present a process and effect evaluation of a complex social intervention.// Results: Findings based on a small sample and limited follow up period show nonsignificant results in terms of reducing the harmful effects of stalking, but which are encouragingly in the right direction. The case study demonstrates the importance of a theory driven approach to multi-agency evaluation and identifies essential factors necessary for ensuring implementation success.// Conclusions: A theory of change driven approach and an EMMIE-inspired evaluation can help identify whether interventions work, how they work, for whom they work, and under what conditions. It demonstrates the importance of data collection and provision for long term evaluation plans, especially for complex social interventions. The paper makes a significant methodological and empirical contribution to evaluation literature. Y1 - 2024/05// PB - Elsevier VL - 92 A1 - Belur, Jyoti A1 - Tompson, Lisa A1 - Jerath, Kritika UR - https://doi.org/10.1016/j.jcrimjus.2024.102195 TI - A theory of change driven approach to evaluating a multi-agency stalking intervention programme KW - Multi-agency partnership KW - evaluation KW - stalking KW - theory of change KW - EMMIE ER -