October 20, 2026, 10:52 AMRSSRU

Sergei Marin

Location unknownChecked October 18, 2026

Sergei Marin, born 1955, Mordovia. Charges: Article 280.3 part 1, Russian Criminal Code (Discrediting the Armed Forces of the Russian Federation, government agencies, or mercenaries); “Sergei Marin's case of discrediting the Russian Armed Forces”. Sentence (March 25, 2025): 1 year's imprisonment in open prison, ban on administrating websites for 2 years. Status: location unknown. Recognition: Memorial: Support for Political Prisoners — recognised as a political prisoner, September 29, 2025.

In brief

Mordovia · Saransk · Human rights defenders · Anti-war cases, Cases related to mass actions

Sentence

1 year

s imprisonment in open prison, ban on administrating websites for 2 years

Verdict March 25, 2025

Upheld November 19, 2025

Charges

Full wording of the charges

The reason for the prosecution was the post by the human rights defender dated 24 February 2024 about the death of politician Alexei Navalny and the anniversary of the beginning of the invasion of Ukraine. "Today is the ninth day since the death of Alexei Navalny, a foreign agent, terrorist and extremist according to Putin. Today is the anniversary of the war with Ukraine. There, according to Putin, it is necessary to denazify, that is, to kill all Ukrainians," he wrote. On 30 June 2022, he was fined 40 thousand rubles under the administrative article for discrediting the army (Article 20.3.3 of the Administrative Code) due to his comment on "VKontakte" on the "Hello, Now, Saransk" community page, where he wrote "Russian troops have entered the territory of another state, they are killing civilians. That is why they are afraid to report losses, so as not to show the level of resistance of Ukrainians. As for special operations, I remember the six-day war between Israel and the Arabs, which involved fewer troops than this strange special operation of Russia in 2022".

Latest event

July 3, 2026 — imprisonment ends

Checked October 18, 2026 · no changes since October 15

Recognition by rights defenders

Timeline

  1. · Imprisonment ends

  2. · Cassation ruling

    upheld

  3. · Recognised as a political prisoner

    Memorial: Support for Political Prisoners

  4. · Added to the Rosfinmonitoring list of “terrorists and extremists”

  5. · First-instance verdict

    guilty verdict · 1 year

  6. · Persecution begins

    Sergei Marin's case of discrediting the Russian Armed Forces

Criminal case

Sergei Marin's case of discrediting the Russian Armed Forces

Case number
1-240/2024

There are no other defendants in this case in the database.

Thematic group: Anti-war case

Details and sources

Full summary

According to OVD-Info

Resident of Saransk, human rights defender. Defends the rights of prisoners and represents their interests in court disputes with representatives of the Federal Penitentiary Service. In the 2010s, he was a member of the Public Supervisory Commission of Mordovia for several years and an expert of the Foundation "In Defence of Prisoners' Rights". On his pages in social networks he criticises the Russian authorities and has repeatedly gone to protests. In 2022, he was fined 40,000 rubles under an administrative protocol for discrediting the army (Article 20.3.3 of the Code of Administrative Offences) because of comments in which he condemned the war in Ukraine. In September 2023, Maryin held an anti-war picket, after which the police came to his home. On 24 February 2024, on the second anniversary of the start of full-scale war, Maryin stood in a solitary picket with the inscription "Putin = death = war". He was detained. The next day the court arrested him for three days under the administrative article on disobedience to the police (part 1 of article 19.3 of the Code of Administrative Offences). The court ruling stated that the police detained the human rights defender to draw up a report on "discrediting" because of a post on VKontakte published on the same day about the death of Alexei Navalny and the anniversary of the beginning of the war. On 19 July 2024, law enforcers came to the home of the human rights defender with sledgehammers, conducted a search and seized all his equipment. A criminal case was opened against him for discrediting the Armed Forces because of the same post. After interrogation, Maryin was released on his own recognisance. In August, the investigator twice elected a preventive measure against Maryin in the form of a signature not to leave. The human rights defender obtained a court ruling that one of these decisions was unjustified. On 25 March 2025, Maryin was sentenced to a year in a penal colony. On 6 February 2026, his punishment was toughened, replacing the place of serving his sentence with a general regime colony, but on 15 April the court of appeal cancelled this decision.

All fields of the record
Citizenship
Russia
Sources (1)

Other people prosecuted under Article 280.3 part 1, Russian Criminal Code

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