Huawei executive Meng Wanzhou made a deal with the US that permitted her to return to China. China then released two Canadians that it had held hostage for almost three years to pressure for Meng's release.

I have no way of knowing whether Meng was guilty of a real crime, and I can't be sure that the charges against the two Canadians were not valid, but the bogus trial they received demonstrates that China was using them as pawns.