In this Chapter—
“court” includes a court-martial;
“guidelines” has the same meaning as in section 172(1);
“life sentence” means—
a sentence of imprisonment for life,
a sentence of detention during Her Majesty’s pleasure, or
a sentence of custody for life passed before the commencement of section 61(1) of the Criminal Justice and Court Services Act 2000 (c. 43) (which abolishes that sentence).