Tara Denham is a member of the Security and Intelligence Threats to Elections Task Force (SITE), a body set up to monitor elections interference.
She told MPs that the task force was aware that anti-Conservative messages were widely distributed on WeChat, a Chinese social media app, during the last election.
But Denham said SITE couldn't determine whether those messages came from foreign sources.
Former Conservative B.C. MP Kenny Chiu, who has been a vocal critic of China, has said he was the target of propaganda and disinformation on WeChat durng the last election campaign.
Former Conservative MP Kenny Chiu in the House of Commons on April 13, 2021. (Adrian Wyld/The Canadian Press)
He lost his Vancouver-area seat to the Liberal candidate and has
claimed China played a role in that defeat.