Fis Gorffennaf, cadeiriais gyfarfod cyntaf Is-bwyllgor Cabinet Llywodraeth Cymru ar Gyfiawnder, sydd wedi ei ailgynnull. Cytunais â'r Prif Weinidog a'r Gweinidog Cyfiawnder Cymdeithasol ei bod yn adeg briodol, wrth inni symud i gyfnod gwahanol yn y pandemig, i ailgychwyn y sgyrsiau gyda Llywodraeth y Deyrnas Unedig am ddyfodol cyfiawnder yng Nghymru. Ysgrifennodd y Prif Weinidog at yr Arglwydd Ganghellor ar y pryd i fynegi siom ddybryd fod Llywodraeth y DU wedi gwrthod argymhelliad canolog adroddiad Comisiwn Thomas, gan bwysleisio bod nifer fawr o argymhellion eraill y gellid eu cyflawni o dan y trefniadau datganoli presennol, neu sy'n cynnwys rhyw elfen o ddatganoli heb drosglwyddo'r cyfrifoldeb am gyfiawnder yn ei gyfanrwydd. Er enghraifft, mae dadl gref dros ddatganoli'r system cyfiawnder ieuenctid, a argymhellwyd gan Gomisiwn Silk hefyd yn 2014.
In July, I chaired the first meeting of the Welsh Government’s reconvened Cabinet Sub-Committee on Justice. I agreed with the First Minister and the Minister for Social Justice that as we entered a different phase of the pandemic the time was right to kick-start conversations with the UK Government about the future of justice in Wales. The First Minister wrote to the then Lord Chancellor to express strong disappointment that the UK Government had rejected the Thomas Commission report’s central recommendation, while emphasising there is a large number of other recommendations that are achievable under the current devolution arrangements or involve some element of devolution without transferring responsibility for justice in its entirety. For example, there is a strong case for devolving the youth justice system, which the Silk Commission also recommended in 2014.