The public will go to the polls on Thursday, November 15, to elect police and crime commissioners, powerful new posts that come with the ability to control police budgets, hire and fire chief constables and decide policing priorities.
Each force in Wales and England — except in London — will have an elected commissioner who will replace the existing police authorities.
Scotland, where policing is devolved, is not introducing the system.
The UK Government says commissioners will make police forces more accountable to the communities they serve — but opponents claim they will lead to party politicians having influence over policing.
Read about the four candidates in the South Wales Police election below.
Labour's Alun Michael.
Caroline Jones for the Conservatives.
Independent candidate Mike Baker.
Independent candidate Tony Verderame.
There are two candidates in the Dyfed-Powys election.
Christine Gwyther for Labour.
Christopher Salmon for the Conservatives.