"Different investigation" is a review system stipulated in the Song Dynasty to prevent unjust, false and wrong cases. It means that if the prisoner files a complaint during recording or execution, the case must be analyzed. The "Different Investigation" in the Song Dynasty is divided into the original trial authority " "Secretary investigation" and "commissioned investigation" are two forms. "Secretary investigation" refers to the case that the original reviewing agency submits the case to another judicial authority at the same level for review. "Secretary investigation" refers to the original reviewing agency. When a case is reported to a higher authority, the higher authority is responsible for sending a retrial to an official of another authority that is not related to the original trial authority. In this case, it is often the case that an official of the higher authority is sent to the original trial authority for trial, or the case Move to a higher authority for review. According to the above definitions, Which of the following are not classified as "different surveys":. ['The prisoner appeals the case tried by the state and county, and can transfer the case to the superior of the state and county-the chief of the road for retrial.', 'The left and right halls of the criminal department of the Central Judiciary of the Song Dynasty.', 'The prisoner appeals the case tried by the state and county, and the superior of the state and county-the chief of the road can go to the state and county to re-examine the case.', 'In the Song Dynasty, local judicial organs were divided into the road, state, and county levels from top to bottom. After making a judgment on a case appealed from the county to the state, if the prisoner files a complaint, the state will send it back to the county for retrial.']