Mark Greenhalgh (2026)

This thesis explores the organisational, operational, and investigative dynamics that influence the management of long-term missing person cases in England and Wales. Although most missing individuals are located quickly, a minority become protracted and unresolved investigations, often referred to as cold cases. These cases remain under-researched in both academic and professional contexts. The study addresses a critical gap in understanding the sustained investigative approaches required to reduce the likelihood of such cases becoming dormant and aims to improve investigative outcomes and the support provided to families of those long-term missing.

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University of Portsmouth

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