“Under the terms of the extradition treaty, the U.S. could request Meng's arrest in Canada if she was wanted in connection with conduct considered criminal in both Canada and the United States, and if the offence carries a jail sentence of a year or more. Once that threshold is met, the treaty compels Canada to act.” https://www.cbc.ca/news/politics/meng-huawei-extradition-1.4937146