French national Aurore Gros-Coissy (C) is escorted by police as she arrives on January 30, 2015 at the Supreme Court in Port Louis.
PHOTO: AFP
Aurore Gros-Coissy, 27, was arrested in 2011 with 1,680 Subutex tablets, a drug sold on prescription in France as a heroin substitute for those trying to end their addiction, but banned in Mauritius.
She has always maintained her innocence, claiming the drugs were placed there by a friend, whose mother, Mauritian national Giantee Ramchurn, was also sentenced to 20 years in jail on Friday.
Judge Bobby Madhub also fined Gros-Coissy 1,300 euros and Ramchurn some 2,600 euros.
Both had been found guilty in November last year.
As well as Gros-Coissy, four other French nationals have been jailed in Mauritius for smuggling Subutex and are serving prison terms ranging from 15 to 20 years.
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