Why didn't Beijing file a case with Jieyue?

The reason for this is the following:

1. In the pre-administrative stage, the financial office and other departments will investigate and handle related cases. If the case does not meet the filing criteria or needs further investigation, it will not be filed immediately.

2. The Jieyue case involves illegal acts such as contract fraud, but there is no conclusive evidence to prove its criminal facts.

3. The parties involved abscond or are not in China, which makes it impossible to continue the trial of the case.