https://www.reuters.com/article/us-usa-huawei-tech-canada/defense-grills-canada-police-witness-on-fbi-surveillance-of-huawei-cfo-idUSKBN2841E8

The U.S. Federal Bureau of Investigation (FBI) was surveilling Huawei Chief Financial Officer Meng Wanzhou prior to her December 2018 arrest at a Canadian airport, a police officer said at Meng's extradition hearing on Tuesday.