Welsh Government officials then attended several meetings with the Ministry of Justice before it was concluded that the pilot would not after all be taken forward.
Yna, aeth swyddogion Llywodraeth Cymru i sawl cyfarfod â'r Weinyddiaeth Gyfiawnder cyn iddi ddod i'r casgliad na fyddai'r cynllun peilot yn mynd rhagddo wedi'r cyfan.