When the Three Strikes law was put into place, people were responding to brutal crimes that should have been prevented since it wasn’t the first time the person committing the crimes had acted violently. The law made it so that any third crime after two violent crimes would result in a life sentence. This proved to be too strict a law because it imprisoned people for life for very minor crimes.
When the California Three Strikes law was reformed in 2012 the reform removed life sentences for non-violent crimes and even made it so those already serving time under the old law could seek a sentence reduction. Those who believe that they should not have a life sentence for their third non-violent crime can appeal the sentence. To win a reduced sentence, the prisoner must be shown as a non-threat to society.