Sanctions imposed by the U.S that hold no merit according to WTO or International law aren't even legal and are in fact considered an act of war. The only crime committed here is by the U.S.
https://www.bloomberg.com/news/articles/2018-12-07/huawei-s-...
Meng has apparently comitted a serious crime according to US law by exporting US-made tech to Iran.
If this is proven to be true, she's clearly violating the law, and surely knowingly so.