 Under the 1982 Constitution the then military government established State Security Courts ("Devlet Güvenlik Mahkemeleri", DGM) to try cases involving crimes against the security of the state, and organized crime.It would also act as a domestic tribunal to try cases involving genocide, crimes against humanity, and war crimes.The DGMs began to operate from May 1984 and replaced military courts which had been in operation during the martial law period.