"As time goes on, more and more people will be cared for in nursing homes" says Peter Tyndall, the Public Services Ombudsman for Wales.
"We need to make sure that what happened in England - where the quality of care in homes wasn't being properly monitored - isn't repeated in Wales".
"I know that the NHS in Wales are taking this seriously, but this is an issue that has to be dealt with across Wales, not just in this particular care home".
More top news
Showers this evening with heavier and more persistent rain arriving overnight. A wet start tomorrow but improving during the afternoon.
A mother from Neath has told how her teenage son collapsed and was left unconscious for five hours after taking a so-called legal high.
Two brothers from Cardiff are campaigning for their cousin's murder to be re-investigated, 76 years after she died.