Australian Sara Connor has been jailed for four years for her role in the killing of a Bali police officer on a Kuta beach and her British DJ boyfriend, David James Taylor, sentenced to six years.
With time already served and remissions of several months each year for good behavior Connor could be free in less than three years.
However, if prosecutors appeal, which they are expected to do because the sentence is less than two-thirds of the eight years they had demanded, she faces the prospect of a different conviction and longer sentence.
Her boyfriend accepted his sentence and says he will not appeal.
Prosecutors said they will advise on appeals after consulting their bosses.
Three judges in the Denpasar District Court found the Byron Bay mom and businesswoman legally and convincingly guilty of group violence causing the death of Bali police officer Wayan Sudarsa in the early hours of August 17.
Taylor was convicted of the same offense but given a heavier sentence given his larger role in the killing. The sentences were less than the prosecutors had demanded and much less than the 15-year maximum for murder.
The judges found murder not proven. But in jailing Connor, the judges rejected a key plank of her defence - that her only role was in separating her boyfriend and the officer from fighting on the beach. They found that she had sat on the victim, not to separate them but to pin the officer down while Taylor assaulted him.