After a defendant has been convicted, a judge must follow the guidelines set out in the Sentencing Act 2002 to ensure the sentence they hand down is appropriate.
The act sets out the purposes and principles of sentencing, and states that while a defendant must be held accountable for the harm done to their victim and or the community and the sentence must deter them and others from committing similar offences, it must not be disproportionately severe.
Section 6
Penal enactments not to have retrospective effect to disadvantage of offender
• (1) An offender has the right, if convicted of an offence in respect of which the penalty has been varied between the commission of the offence and sentencing, to the benefit of the lesser penalty.
(2) Subsection (1) applies despite any other enactment or rule of law.
Section 7
Purposes of sentencing or otherwise dealing with offenders
• (1) The purposes for which a court may sentence or otherwise deal with an offender are-
• (a) to hold the offender accountable for harm done to the victim and the community by the offending; or
• (b) to promote in the offender a sense of responsibility for, and an acknowledgment of, that harm; or
• (c) to provide for the interests of the victim of the offence; or
• (d) to provide reparation for harm done by the offending; or
• (e) to denounce the conduct in which the offender was involved; or
• (f) to deter the offender or other persons from committing the same or a similar offence; or
• (g) to protect the community from the offender; or
• (h) to assist in the offender's rehabilitation and reintegration; or
• (i) a combination of 2 or more of the purposes in paragraphs (a) to (h).
(2) To avoid doubt, nothing about the order in which the purposes appear in this section implies that any purpose referred to must be given greater weight than any other purpose referred to.