Italian President Giorgio Napolitano has pardoned a member of a left-wing guerrilla group that carried out one of Italy's most notorious murders.
President Giorgio Napolitano is to be asked to pardon other members
Ovidio Bompressi, of the Lotta Continua group, was serving a 22-year jail term for the murder of Milan police chief Luigi Calabresi in 1972.
Justice Minister Clemente Mastella says he will also seek a pardon for Lotta Continua leader Adriano Sofri.
Mr Mastell's centre-right predecessor Roberto Castelli criticised the move.
The murder of Chief Calabresi was commemorated on a set of stamps last year, but left-wingers still blame him for the death of a young anarchist who either jumped or was thrown from the fourth-floor window of Milan's police headquarters in 1969.
The incident inspired Dario Fo's play Accidental Death of an Anarchist.
The anarchist, Giuseppe Pinelli, was being questioned about a bomb that killed 16 people in a Milan bank.
Bompressi was jailed in 1997 and previous efforts to seek a pardon were blocked by the centre-right government of Silvio Berlusconi, which was defeated in April's elections by centre-left coalition led by Romano Prodi.
Sofri, 63, was temporarily released from prison last year on health grounds.