Ar 10 Gorffennaf lansiwyd ymgynghoriad yn ceisio barn am gynigion Llywodraeth Cymru i ACC gael mynediad at bwerau troseddol. Amlinellodd yr ymgynghoriad, a ddaeth i ben ar 2 Hydref, fy nghynnig y dylai ACC gael pwerau yn eu lle i atal ac ymchwilio i droseddu ym maes trethi datganoledig. Daeth 17 o ymatebion i law, gan gynnwys cyfraniadau gan bartneriaid allweddol fel yr Asiantaeth Troseddu Cenedlaethol  a Chyfoeth Naturiol Cymru. At ei gilydd, roedd cefnogaeth i safbwynt Llywodraeth Cymru ar y prif faterion a nodwyd yn yr ymgynghoriad.
On 10 July a consultation was launched seeking views on the Welsh Government's proposals for WRA to access criminal powers. The consultation, which closed on October 2, outlined my proposal for the WRA to have powers in place to deter and investigate devolved tax crime. Seventeen responses were received, including contributions from key partners like the National Crime Agency and Natural Resources Wales. Overall, there was support for the Welsh Government's position on the main issues identified in the consultation.