Mafcer Boris (born 1947, Riga) - Prisoner of Zion.

Boris Mafcer graduated from the Riga Electromechanical Technical School and completed three years at the Moscow Polytechnic (Printing) Institute. He worked as a senior engineer for new technology and rationalisation at the Riga Experimental Plant of Decorative Hardware.

He was arrested on 4 August 1970. The trial took place in May 1971 (the “Riga Trial”). He was sentenced to one year of imprisonment in a strict-regime corrective labour camp.

Literature:

Anti-Jewish Trials in the Soviet Union (1969–1971), edited and commented by A. Rozhansky. Jerusalem, 1979, vol. 2.

Source: http://www.angelfire.com/sc3/soviet_jews_exodus/POZ_s/POZ-70-2.shtml