The International Ice Hockey Federation (IIHF) has launched a formal investigation into Swiss national ice hockey coach Patrick Fischer after he admitted to using a forged COVID-19 vaccination certificate to attend the 2022 Beijing Winter Olympics. New details have emerged suggesting Fischer may have deceived the IIHF itself, as questions mount over whether he used the fake certificate to gain entry to other international events, including the 2022 World Championship in Finland, where proof of vaccination was mandatory. Swiss Ice Hockey's governing body has so far refused to comment beyond an initial statement, while Fischer — who was convicted and fined over 38,000 Swiss francs in 2023 — is currently preparing his team for a World Championship warm-up match in Slovakia as the scandal continues to grow ahead of May's World Championship, which Switzerland is hosting.