MP Mihhail Stalnuhhin has lost the first round of his court action in which he sought a takedown of material posted by the Internal Security Service in the counterintelligence agency's yearbook.
The Tallinn Administrative Court, the court of first instance, did not provide additional information about the case, saying it was a closed hearing.
The counterintelligence agency had said that in lobbying to keep five Russian-language schools from making the transition to Estonian as the language of instruction, he had urged the schools not to comply, while Stalnuhhin maintained he was only participating in public discourse on the subject.
Stalnuhhin was a Narva city councilman at the time. He has 30 days to appeal to a District Court.
That leaves fellow MP and freshly elected MEP Yana Toom as the only one of three politicians to have prevailed in court.
In Toom's case, the District Court ruled that the ISS must remove the offending passages - also on the subject of secondary language reform - from the digital version of its yearbook.
Tallinn Deputy Mayor Mihhail Kõlvart is a third official who has been involved in court cases with the ISS.
By law, Russian-language secondary schools were to have changed over to 60 percent Estonian instruction by September 2011.