Today's Jurnal de Chisinau has an interesting article on a few Moldovan public figures that were detained immediately after the mass disorders on April 7 under accusations of organizing the protests.
Police authorities arrested or detained hundreds of men and women after April 7, but
most of them were released after President Voronin called for an amnesty (the issue of the amnesty is very unclear - Moldova's General Prosecutor has said that authorities are continuing investigations regarding the involvement of people who have been released).
Jurnal de Chisinau says that only five people remained in police custody throughout the electoral campaign, all of them relatively well-known public figures in Moldova (with the possible exception of Romanian priest Jonathan Netanyahu, who was not a visible public figure before his arrest).
Gabriel Stati, a famous Moldovan businessman, and his bodyguard Aurel Marinescu, were released before July 29, and the other three were released afterwards.
At this point, then, there seem to be no people being held for their alleged involvement in the April 7 protests.