Ташкентская область
Mamatov organized a parliamentary commission to investigate violent incidents in Bekobod, Boka, Parkent and concluded that they were masterminded by the Uzbek government. He showed evidence that the KGB was behind terrorist acts among the ethnic Uzbeks and Meskhetian Turks in the Parkent district of Tashkent Province. His public conclusions and accusations angered the Uzbek government, which followed and harassed him. The Central Committee of the Communist Party of Uzbekistan accused Mamatov of criticizing the Chairman of the Party, Islam Karimov. The chief justice of the Supreme Court, on his own TV program, asked the Presidium of the Supreme Soviet for permission to arrest Mamatov, but the attempt was rejected for lack of parliamentary support.