A prosecution investigation revealed the circumstances in which the court administration was involved in the trial to speed up the Supreme Court's decision on certain cases.

The Seoul Central District Prosecutor 's Office investigation team found that the former court administrative chief, Young - Han, tried to influence the timing of the sentencing jurisdiction of Pyeongtaek City and Dangjin City.

The Supreme Court judge ordered the Supreme Court trial researcher to write a review report that the Supreme Court should finish the landfill jurisdiction lawsuit in October 2016 before the Constitutional Court.

The Supreme Court ruled that the Supreme Court had to make a decision faster than the Constitutional Court to determine the status of the Supreme Court.

In fact, the review report has been forwarded to the Supreme Judge, and the Supreme Court is reported to have scheduled the sentence before the Constitution.

However, the Supreme Court and the Constitutional Court have not yet ruled the case until the sentence has been postponed since the crisis of the National Agricultural Cooperative Federation.

In May 2015, the Ministry of Government Administration and Home Affairs decided to allocate 70% of the 965,000㎡ of land in Dangjin and Pyeongtaek Port landfill to Pyeongtaek City and 30% to Dangjin City.

Immediately after this decision, Dangjin City and Chungnam Province filed a lawsuit against the Supreme Court for dismissing the ruling by the revised Local Autonomy Law.

The prosecution allegedly interfered with the right to abuse the right to abuse the right to report by the Justice Chief Justice and described it in the crime of the arrest warrant claim.