New leads follow Gareth Williams voyeur teacher case
Police are investigating "four inquiries" after receiving information from the team which led to the capture of voyeur teacher Gareth Williams.
Dyfed Powys Police was passed leads from Toronto police's Project Spade, which looked into the making and selling of child exploitation videos and images over the internet.
One of their leads identified Williams, who was jailed for secretly filming pupils in toilets at a Cardiff school.
He was jailed for five years on Monday.
Canadian police authorities revealed last November they had looked at the identities of customers of a website and sent out intelligence to over 50 countries.
It was from one of these leads that Cardiff deputy head teacher Gareth Williams was identified and on Monday he was sentenced to five years after admitting 31 charges including nine of voyeurism, 20 of making indecent photos and two of possessing indecent photos.
Cardiff Crown Court heard he had 16,419 indecent images of children and 691 videos.
Dyfed Powys Police told BBC Wales: "Four inquiries are ongoing following information received under Project Spade."