On 15 January 2016 Vadim Prokhorov, a lawyer acting for opposition activist Vladimir Kara-Murza, Jr., told RFE/RL that a local branch of the Investigative Committee had asked to question his client with regard to the near-fatal illness he suffered in May 2015. Vladimir Kara-Murza, Jnr., who was in Washington at the time of the report, welcomed the news and said he would meet with investigators when next in Moscow.

Carl Shreck, writing in RFE/RL, reports: ‘Vladimir Kara-Murza, a coordinator for the NGO Open Russia, headed by Mikhail Khodorkovsky, believes he was the victim of an intentional poisoning related to his political activities. On 11 December 2015 he had filed a formal request with the Investigative Committee requesting an investigation into his illness as attempted murder. […] Prokhorov said it was likely the Investigative Committee will ultimately decide not to open a formal criminal case. […] "However, the fact that it took them more than a month to begin the check, and that the case was transferred to the district level, points to a lack of priority," [Kara-Murza] said.’

Sources:
Carl Shreck, ‘Lawyer: Russian Investigators Summon Kremlin Critic In Poisoning Probe,’ RFE/RL, 15 January 2016