The most straightforward services to begin the process are policing, given its funding and governance structure and close working relationship with devolved services at national and local level
Y gwasanaethau mwyaf syml i ddechrau'r broses yw plismona, o ystyried ei strwythur ariannu a llywodraethu a'i pherthynas waith agos â gwasanaethau datganoledig ar lefel genedlaethol a lleol