Life sentence
A life sentence, or a whole of life imprisonment, was a criminal punishment.
In the United States of America, the Supreme Court agreed to hear a case asking for adjustments to the life sentences of convicted criminals in light of Miracle Day in 2011; as the human race had been rendered immortal, life sentences became potentially infinite. (TV: Dead of Night)
In the 52nd century, River Song was sentenced to twelve thousand consecutive life sentences for the murder of the Eleventh Doctor. (HOMEVID: First Night)
The Thirteenth Doctor was captured by the Judoon's cold case unit and given a life sentence for her actions as the Fugitive Doctor, as well as 7000 additional charges against her. She was able to escape her sentence when she broke out with Jack Harkness. (TV: Revolution of the Daleks, PROSE: The Doctor's Prison Diary)