The detention facilities in Didymoteicho Border Guard Department consist of two cells of 21 and 38 square metres. There is conflicting information regarding the official capacity of the cells. A report by the Hellenic League of Human Rights following a site visit in 2009 states that the two cells accommodated five and nine people respectively, while a 2012 official document refers to a detention capacity of 30 beds.

Degrading detention conditions have been consistently reported by the Council of Europe’s Committee for the Prevention of Torture (CPT), from its first visit in 2008 to the most recent in 2020. CPT reports describe cells as poorly ventilated and dimly lit, damp, malodorous and dilapidated, and mattresses and blankets as dirty. Further, sanitary facilities are reported as unhygienic, ‘filthy’ and in a poor state of repair, with waste such as food, diapers and sanitary towels found on the floor in 2018 and ‘piles of faeces’ in 2020. Detainees have no access to outdoor space for exercise. According to the CPT, conditions of detention in 2018 and 2020 could be considered as ‘amounting to inhuman and degrading treatment’. In 2018, the cells were overcrowded, with 41 detainees – including men, women and children – sharing less than 1.5 square metres of living space. The CPT recommended that the cells were taken out of use for refurbishment.

After the 2020 visit, the Greek authorities stated in their response to the CPT that plumbing and lighting in the cell area had been repaired. However, a testimony collected by the Border Violence Monitoring Network in 2022 describes the facility as ‘extremely dirty and infested with bed bugs’. According to media reports, Arabic-speaking people detained in the Didymoteicho Border Guard Department have referred to it as ‘Abu Riha’ (ابو ريحة in Arabic, 'The Father of Stinky Smells') due to its bad smell. In 2023, local media reported that the Didymoteicho Border Guard Department would be refurbished. However, as of April 2026, there were no documents in the administrative database diavgeia.com.gr verifying this.

Custody records during the 2008, 2018 and 2020 inspections by the CPT were found to be incomplete and poorly kept, for example missing information on times or dates of arrival or transfer of detainees.

Expenses for the operation of Didymoteicho Border Guard Department have been covered by EU funding programmes such as the External Borders Fund and the Internal Security Fund. Expenses related to detention such as food for detainees are covered through the Greek national budget.