Chairman of the Extraordinary Investigation Commission Alakbar bey Hasmammadov was a member of the Central Committee of the Difai Party, the Ganja Muslim Charity and the Ganja Muslim National Committee. He was appointed chairman of the Extraordinary Investigation Commission established by the Government of the Republic of Azerbaijan on July 15, 1918, and under his leadership, the EIC collected 36 volumes – 3,500 pages of investigative materials from 15 July 1918 to 01 November 1919. Six volumes of investigative materials reflect the genocide committed by the Armenians against the Muslim population in Baku, and a collection of 451 pages and 3-volume documents on violence in Guba region. Other volumes of investigative material refer to cruel crimes committed by Armenians in Shamakhi, Goychay, Javad, Nukha, Ganja, Karabakh and Zangezur.
On January 6, 1919, the chairman of the Extraordinary Investigation Comission , Alakbar bey Hasmammadov, sent documents to the Minister of Foreign Affairs regarding the genocide to be sent to the Paris Peace Conference. On January 11, 1920, in connection with the de-facto recognition of the Azerbaijan Democratic Republic by Antanta, on decision of the Parliament of the Republic of February 9, crimes commited on the grounds of hostility, was terminated and the investigation was suspended.
Generally, the materials collected by the EİC under the leadership of Alekber bey Hasmammadov until April 1920, as well as testimonies, are historical records that reveal the crimes of Dashnaks and Bolsheviks. Referring to these documents, the March 31, was declared by the ADR as a national mourning day in 1919 and 1920.
