Voyeur teacher Gareth Williams was TV presenter
A teacher who has admitted voyeurism after recordings of children in toilets were found on his computer used to be a children's TV presenter.
Gareth Williams, 47, from Cardiff, was caught after South Wales Police found thousands of indecent images of children on his computer following an international investigation into child sex abuse images by police in Canada.
They discovered films he had made using hidden pinhole cameras to capture images of children in toilets, including at two houses. He will be sentenced next month.
Two decades ago, Williams was presenting the Welsh-language programme Sut a Pham (How and Why) which answered questions on science and nature asked by children.