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Mamaev Sergey Olegovich
Мамаев Сергей Олегович
medium Priorityactivismdetained
Age 45 · male
Yoshkar-Ola, Republic of Mari El
Terrorism & Extremism Charges — Legal Notice
This platform does not support, endorse, or condone terrorism or violent extremism in any form.
This individual has been charged under statutes classified as terrorism or extremism offenses. However, these charges should be evaluated with significant scrutiny. International human rights organizations — including Amnesty International, Human Rights Watch, and Memorial — have extensively documented that terrorism and extremism statutes in this jurisdiction are routinely applied to prosecute political dissidents, journalists, religious minorities, and peaceful protesters.
The inclusion of this case on the platform reflects the monitoring mission of documenting individuals who may be subject to politically motivated prosecution. It does not constitute an assessment of guilt or innocence, nor an endorsement of any actions attributed to the individual.
Case Summary
Sergey Mamaev, a civil activist from Yoshkar-Ola, is accused of supporting an organization associated with Alexei Navalny. He has been detained since July 22, 2025, facing charges related to participation in an extremist organization.
Charges (1)
- Participation in the activities of a public association or other organization in respect of which a court has adopted a decision that has entered into legal force on liquidation or prohibition of activities in connection with the implementation of extremist activities
Criminal Code Articles (1)
Analyzing Legal Record
Key Facts (4)
- Born March 11, 1980
- Civil activist
- Accused of supporting Navalny's organization
- Detained since July 22, 2025
Native Language Summary
Мамаев Сергей Олегович родился 11 марта 1980 года, жил в городе Йошкар-Ола Республики Марий Эл, гражданский активист. Предположительно обвиняется по ч. 2 ст. 282.2 УК РФ («Участие в деятельности общественного объединения либо иной организации, в отношении которых судом принято вступившее в законную силу решение о ликвидации или запрете деятельности в связи с осуществлением экстремистской деятельности», до 6 лет лишения свободы) в поддержке одной из организаций сторонников Алексея Навального. Лишён свободы с 22 июля 2025 года.
