He confirmed he has asked Labour's Ann Clwyd, MP for the Cynon Valley, to examine how NHS hospitals could deal with complaints better in future.
In December, she criticised the care given to her late husband at Cardiff's University Hospital of Wales.
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There has been a 13% rise in cases referred to Welsh authorities over the last year.
North Wales Chief Constable Mark Polin met with town councillors and residents to discuss the issue of crime in Rhyl.
Martin Tate taunted North Wales Police via a Facebook appeal for him by saying "see who has the last laugh now".