Life imprisonment in England and Wales
In England and Wales, life imprisonment is a sentence that lasts until the death of the prisoner, although in most cases the prisoner will be eligible for parole after a minimum term ("tariff") set by the judge. In exceptional cases a judge may impose a "whole life order", meaning that the offender is never considered for parole, although they may still be released on compassionate grounds at the discretion of the home secretary.
Source: Wikipedia — Life imprisonment in England and Wales (CC BY-SA 4.0)