The gravity of Hogefeld's crime does not deserve any lenience, the higher regional court in Frankfurt said. Three people were killed in the RAF attack. Hogefeld was a fugitive until 1993 when she was arrested at a train station in Bad Kleinen. She was sentenced to life in prison in 1996.
German law states that after serving 15 years of a life sentence, prisoners can appeal to serve the rest of their sentence on probation. Hogefeld crossed the 15-year mark in June.
The court ruled that Hogefeld cannot make her next appeal until 2011.
The RAF was a prominent militant left-wing group that engaged in lethal terrorist attacks from the 1970s to 1993. The group was responsible for 30 deaths and countless injuries. The drive-by murder of Chief Federal Prosecutor Siegfried Buback and two passengers on April 7, 1977 was among their most high-profile crimes and it remains unclear which RAF members were involved.