According to a hacker, who uploaded the database on Monday, he had "persistent access to various parts of the Turkish government infrastructure for the past two years."
The uncompressed version of the file is almost 18 GB, which means there might be some very "interesting" information for some.
The hacker decided to release the files due to the Turkish government's "various abuses in the past few months," according to Anonymous.
Data leak coming soon, stand by pic.twitter.com/LESY9JaczY— Anonymous (@YourAnonNews) 15 февраля 2016
EGM is Turkey's civilian police force which is supposed to prevent crimes, keep the public peace and protect citizens and their property.
Turkey has been accused of helping and buying smuggled oil from Daesh militants. Furthermore, Ankara has been blamed for providing safe passage to Daesh recruits entering Syria.
Many have also criticized Ankara's violent crackdown against Kurds in the southwest of the country, which started last July. According to Amnesty International, at least 150 innocent civilians have already been killed as a result of the fighting between Turkish government forces and Kurds.