Myanmar’s ousted leader Aung San Suu Kyi was set to go on trial Monday on charges that many observers have criticized as attempt by the military junta that deposed her to delegitimise her democratic election and cripple her political future.

Suu Kyi’s prosecution poses the greatest challenge for the 75-year-old and her National League for Democracy party since February’s military coup, which prevented them from taking office for a second five-year term following last year’s landslide election victory.