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Prison overcrowding remains one of the most pressing challenges across European prison services. It affects every aspect of prison operations: from safety, staffing, and infrastructure to the ability to ensure humane conditions, deliver rehabilitation, and maintain public trust. While the scale and nature of the issue vary between jurisdictions, the underlying pressures are widely shared.
For EuroPris, addressing prison overcrowding is therefore not only about documenting the problem, but about strengthening the capacity of prison administrations to respond effectively, professionally, and sustainably. Through its work, EuroPris supports its members in moving from reactive crisis management to anticipatory, well-governed approaches that protect both operational integrity and human rights.
From Challenges to Solutions: Mapping European Strategies on Prison Overcrowding (December 2025)
The first EuroPris report established a comprehensive overview of how prison overcrowding is experienced and addressed across Europe. With contributions from 33 national and regional prison administrations, it provides a unique comparative perspective on the scale, drivers, and consequences of overcrowding.
The report shows that prison overcrowding remains a significant and systemic challenge across Europe, with serious implications for safety, dignity, and compliance with international standards. While often associated with occupancy rates—sometimes exceeding 120%—it emphasises that overcrowding cannot be understood solely in numerical terms, but also reflects qualitative pressures on staff, services, and conditions, including access to healthcare, activities, and safe living environments.
Within their mandates, prison administrations deploy a range of operational and strategic levers to manage these pressures. These include immediate in-prison measures (such as transfers or temporary capacity increases), system-level approaches (including allocation practices, non-custodial measures, and early release), and longer-term actions such as forecasting, infrastructure planning, and engagement in policy discussions. The report underlines that sustainable progress depends on combined measures, anticipatory planning, and coordinated action across the justice chain. This report provides the evidence base and shared reference point for understanding prison overcrowding at European level.
A Practical Guide to Managing Prison Capacity and Informing Policy (expected October 2026)
Building on the 2025 mapping report, this second publication shifts the focus from understanding overcrowding to strengthening how it is managed in practice. It takes a forward-looking perspective, recognising prison administrations as operational actors with a responsibility to define what is safe, lawful, and sustainable, even under pressure.
Drawing on operational experience and largely informed by the insights of former HMPPS CEO and EuroPris Board Member Phil Copple, the report sets out a practical framework for managing prison capacity. It focuses on helping administrations establish clear operational limits, make structured capacity assessments, and maintain essential standards through defined “red lines”. It also highlights the importance of system resilience, contingency planning, and the proactive use of data and forecasting.
A central premise is that without clear and defensible frameworks, capacity pressures are often absorbed through a gradual erosion of standards. By strengthening operational clarity and consistency, the report aims to support prison services in managing current pressures, avoiding future crises, and contributing more effectively to evidence-based policy discussions across the criminal justice system.
Read press release here: https://www.europris.org/wp-content/uploads/2025/12/Press-Release-EuroPris-Publishes-From-Challenges-to-Solutions-Mapping-European-Strategies-on-Prison-Overcrowding-Report.pdf
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