Indefinite imprisonment

Indefinite imprisonment or indeterminate imprisonment is the imposition of a sentence of imprisonment with no definite period of time set during sentencing. It was imposed by certain nations in the past, before the drafting of the United Nations Convention against Torture (CAT).^[1] The length of an indefinite imprisonment was determined during imprisonment based on the inmate's conduct. The inmate could have been returned to society or be kept in prison for life.

In theory, an indefinite prison sentence could be very short, or it could be a life sentence if no decision is made after sentencing to lift the term. In many cases, either a minimum term is imposed or the maximum that can be served is the maximum allowable by law in the jurisdiction for the particular offense.