After the abolition of the Amtsgericht Komotau (District Court in Chomutov) in 1945, its documents remained stored in the court building in Chomutov, in the common registry for the district courts of Hora sv. Sebestiana, Chomutov and Jirkov. Those documents were in the 1950s-1960s gradually handed over to the State Archives in Litomerice (since 1974, the State Regional Archives in Litomerice). Part of the criminal files of the former Amtsgericht Chomutov was stored at the District Court in Most, from where the files were taken over in 1966 by the State Archives in Litomerice. The complete archive collection was arranged and inventoried in 1967. In 1979, the archive collection was transferred to the District Archives Chomutov, based in Kadan (since 1992, the State District Archives Chomutov, based in Kadan).