After the Democratic Party of Albania won the parliamentary election of 22 March 1992, the Parliament set up a commission in early 1993 to investigate the activity of Fatos Nano for alleged corruption and abuse with management of humanitarian aid given by the Italian state during the economic crisis that lasted from 1990 until early 1992. This was a sophisticated way to imprison Nano due to his strong opposition to the autocratic signs of President Sali Berisha and due to the inefficiency and inability of the government headed by Aleksander Meksi to accomplish effective economic reforms. Nano was right about this, because the government of the Democratic Party permitted the notorious Ponzi schemes (known as pyramid schemes in Albania) which resulted in the unrest of 1997 where the majority of Albanians lost their savings, instead of effective economical reforms. On 27 July 1993 the Albanian Parliament approved the request of the General Attorney, Alush Dragoshi to take off the legislative immunity for Nano. On 30 July 1993 Nano was arrested in the office of the Prosecutor, and charged with "abuse of duty and the falsification of official documents in connection with Italian aid" following the use of a single vendor which overcharged and delivered foodstuffs which were unfit for consumption. On 3 April 1994, Nano was sentenced to twelve years in prison. A petition signed by 700 thousand people was sent to President Berisha to free Nano from prison. Nano was considered a political prisoner by the Socialist Party of Albania, Amnesty International, Human Right Watch (former Helsinki Watch), Inter-Parliamentary Union, and other groups, so he was let to be the chairman of it. To do his job from the prison, he used his ex-wife, Rexhina Nano, as intermediate to send directives to the party leadership, sometimes verbally, sometimes in written form. After imprisonment, Nano decided that the party should be led by three Deputy Chairmen and one Secretary General to continue the party's political battle.