The Criminal Appeal (Reviews of Sentencing) Rules 1989
These Rules make procedural provision for the Attorney General to exercise his power of referring to the Court of Appeal cases where it appears to him that the sentencing of an offender in the Crown Court for an offence triable on indictment only has been unduly lenient. Under Part IV of the Criminal Justice Act 1988 the Court of Appeal has power to review, and alter, the sentencing on any such reference.