In this submission, the Union for Civil Liberty (UCL), Manushya Foundation, Young Pride Foundation, Non-Binary Thailand and the Thai CSOs Coalition for the UPR present findings on the structural crisis within the Thai correctional system under the framework of the Universal Periodic Review (UPR). This report aims to reflect the widening gap between Thailand’s international human rights obligations and the current reality of its penal system, which has transitioned from a manageable capacity issue into a systemic breakdown. The findings are based on evidentiary documentation, case studies, and data collected by the Union for Civil Liberty (UCL), the International Federation for Human Rights (FIDH), Freedom Bridge, highlighting how current judicial policies threaten national stability and the Rule of Law, and from Manushya Foundation and Young Pride Foundation, stressing the inhumane conditions of immigration detention centers. .

 

Thailand is a State party to key international human rights instruments, including the International Covenant on Civil and Political Rights (ICCPR) and the Convention against Torture (UNCAT), which establish obligations to ensure the humane treatment of detainees and the right to a fair justice system. 

 

During the third cycle of the Universal Periodic Review (UPR), Thailand received 278 recommendations, supported 218, and noted 60. A number of the recommendations accepted by Thailand are directly relevant to the issues addressed in this submission, including those calling for the improvement of prison conditions, the reduction of overcrowding, and ensuring that the judicial system adheres to the United Nations Standard Minimum Rules for the Treatment of Prisoners (the Nelson Mandela Rules). Notably, Thailand supported specific recommendations to provide health-care services to migrants, refugees, and asylum seekers in detention centres (recommendation 52.70, Iraq), to reform the penitentiary system to ensure humane conditions of detention in accordance with international standards (recommendation 51.75, Russian Federation), and to improve conditions for detainees and sentenced persons to guarantee their right to humane treatment in detention (recommendation 51.76, Ukraine). These recommendations are inextricably linked to the Sustainable Development Goals (SDGs), particularly Goal 16 on peace, justice, and strong institutions, and Goal 10 on reducing inequalities within the legal framework. Overall, implementation remains uneven. While some progress has been observed, including steps toward establishing a National Preventive Mechanism and improvements in healthcare provision, significant gaps persist.

 

Although Thailand has formally committed to these international standards, data indicates that the implementation of reforms remains insufficient. As of 2025, the correctional system has reached a breaking point: 120 out of 143 prisons (84%) are operating beyond standard capacity, with the total inmate population reaching 301,020 individuals. This surpassing of the 300,000 threshold for the first time since 2021 demonstrates a failure to transition from punitive mass incarceration toward rehabilitative justice. Furthermore, the 43% recidivism rate confirms that the current model functions as a revolving door rather than a corrective process.

 

Current monitoring indicates that previous progress has been effectively reversed, with a sharp 7% increase in the inmate population within a single year (2025). These findings suggest that the surge is driven by regressive policy pivots rather than an increase in violent crime. Efforts to address these issues remain largely at the policy discussion stage and have not resulted in the necessary strategic shift toward community-based rehabilitation or public health-led interventions. This lack of concrete legal adoption has hindered the protection of rights for those within the justice system during the 2021–2026 implementation period.

 

This submission indicates that Thailand’s current judicial and penal policies are no longer sustainable and require an immediate reallocation of resources to preserve systemic integrity. These issues will be discussed in the following manner:

• Section 2 discusses Thailand’s current prison population demographics and the breach of the 300,000-inmate threshold.

• Section 3 discusses the critical failure of facility capacity and the resulting human rights implications.

• Section 4 discusses the economic impact of mass incarceration on the national treasury.

• Section 5 discusses the systemic causes of the 43% recidivism rate and the failure of the rehabilitative model.

• Section 6 discusses the regressive policy pivots identified by civil society organizations (FIDH, UCL, and Freedom Bridge).

• Section 7 provides recommendations for transitioning toward community-based rehabilitation and public health-led interventions.

File Size: 21.7 MB

Submission Date: 10 April 2026