Komiljon Usmanov faces charges of threatening Uzbekistan's constitutional order and public security.
Usmanov, who is now 33, was sentenced in 2001 to 10 years in jail on similar charges, but was then freed under an amnesty.
He denies the accusations brought against him.
Arms and leaflets allegedly confiscated from Hizb ut-Tahrir members in Kyrgyzstan in May (RFE/RL)
ATTRACTIVE TO THE YOUNG: It is virtually impossible to estimate the size or composition of Hizb ut-Tahrir's membership in Central Asia, because the controversial movement is banned in most places. But some observers say anecdotal evidence suggests the group's core of younger members is growing....(more)