Philipp Meissner
Inter-Regional Adviser, Penal and Prison Reform, United Nations Office on Drugs and Crime, Austria
Philipp Meissner, Inter-regional Advisor, serves as Team Lead on prison and penal reform in the Crime Prevention and Criminal Justice Section of the UN Office on Drugs and Crime (UNODC), for which he has been working for the past 18 years.
During his tenure, he has focused on penal reform efforts from different angles, including standard-setting, technical advisory services and the implementation of technical assistance projects. Importantly, he successfully led the Secretariat’s support to the inter-governmental processes that resulted in the adoption of the UN Standard Minimum Rules for the Treatment of Prisoners (the Nelson Mandela Rules) and the UN Model Strategies on Reducing Reoffending (the Kyoto Model Strategies) in 2015 and 2025, respectively.
A major focus of his work relates to translating the UN standards and norms related to prison management and the treatment of offenders into practice-oriented guidance material, to guide the implementation of UNODC’s field-based technical assistance in this field and to service respective inter-governmental fora, such as the Vienna-based Group of Friends of the Nelson Mandela Rules.
His continuous commitment to rendering prison and penal reform a more integral part of the rule of law discourse also contributed to the first ever high-level debate of the UN General Assembly on addressing the global prison challenge.
UNODC’s landmark toolkit on the Nelson Mandela Rules was developed under Mr. Meissner’s overall guidance. He also led UNODC’s engagement in emerging trends and challenges in the field of prison and offender management, including the manifestation of violent extremism in prisons, emergency responses to the COVID-19 pandemic in custodial settings as well as, more recently, the impact of climate change disruptions and new technologies on prison management.
Mr. Meissner has visited prisons in close to 50 countries on all continents, provided expert advice to prison, probation and other criminal justice officials in many more jurisdictions and assumed lead functions in the design and implementation of prison and penal reform programmes. Field assignments included, inter alia, the State of Palestine, Cambodia and Sierra Leone.
Mr. Meissner is a German national. He obtained a Master’s degree in Political Science from Freie Universität Berlin, with a focus on international (criminal) law, and is fluent in English, French and German.