Moscow Police Investigation Committee is interested in the Pussy Riot Legal Defenders Mark Feygin and Violetta Volkova participation in the May 6th rally. 

Mark Feygin considers calling in for questioning as a means of pressure on him as the defender of the group Pussy Riot. 

Violetta Volkova has sent a letter refusing to go to the Investigation Committee, scheduled for Wednesday, September 12, due to her agreement to provide legal assistance to Sergei Udaltsov and his wife Anastasia. Udaltsov. Sergei Udaltsov was arrested on May 6th and several day following 

Khodorkovsky Center ‏@mbk_center has tweeted 10.9: 
Just like in the Khodorkovsky case, Russian prosecutors are now going after the lawyers for Pussy Riot. 

READ ARTICLE in SLON (in Russian)http://slon.ru/russia/advokat_pussy_riot_volkova_stala_svidetelem_po_bolotnomu_delu-827215.xhtml