Generally speaking, challenging a verdict required filing an appeal. However, in ancient times, once a person confessed and a judgment was rendered, the opportunity for appeal was nonexistent. Logically, imprisoned individuals lacked the liberty to appeal.
If there was a desire to overturn a case, it fell upon the shoulders of the implicated person's relatives to voice their grievances. The hierarchical structure left no room for jumping levels.
Su Bin expressed a willingness to show leniency; upon the appeal by Chen Lin'er's relatives, he would reconsider the case.
Nevertheless, Mr. Chen took matters into his own hands and hinted to Chen Lin'er that the new governor might be able to vindicate her.
Chen Lin'er, however, rebuffed the offer. "I did commit murder. There's no justice."