Extraditing Huawei Chief Financial Officer Meng Wanzhou to the United States based on American sanctions against Iran would set a dangerous precedent and could even undermine Canada's policy towards Iran, Meng's lawyers argued in court documents released on Friday.

Huawei Chief Financial Officer Meng Wanzhou leaves her home to attend a case management conference in advance of her extradition hearing at B.C. Supreme Court in Vancouver, British Columbia, Canada January 17, 2020. REUTERS/Jennifer Gauthier