Effective from: 01 October 2019 (revised 1 April 2024)
Care should be taken to avoid double counting factors including those already taken into account in assessing culpability or harm
Where a person has committed the offence under the age of 18, regard should be had to the overarching guideline for sentencing children and young people. That guideline may also be relevant to offending by young adults.
Age and/or lack of maturity can affect:
- the offender’s responsibility for the offence and
- the effect of the sentence on the offender.
Either or both of these considerations may justify a reduction in the sentence.
The emotional and developmental age of an offender is of at least equal importance to their chronological age (if not greater).
In particular young adults (typically aged 18-25) are still developing neurologically and consequently may be less able to:
- evaluate the consequences of their actions
- limit impulsivity
- limit risk taking
Young adults are likely to be susceptible to peer pressure and are more likely to take risks or behave impulsively when in company with their peers.
Immaturity can also result from atypical brain development. Environment plays a role in neurological development and factors such as adverse childhood experiences including deprivation and/or abuse may affect development.
An immature offender may find it particularly difficult to cope with custody and therefore may be more susceptible to self-harm in custody.
An immature offender may find it particularly difficult to cope with the requirements of a community order without appropriate support.
There is a greater capacity for change in immature offenders and they may be receptive to opportunities to address their offending behaviour and change their conduct.
Many young people who offend either stop committing crime, or begin a process of stopping, in their late teens and early twenties. Therefore a young adult’s previous convictions may not be indicative of a tendency for further offending.
Where the offender is is care experienced or a care leaver the court should enquire as to any effect a sentence may have on the offender’s ability to make use of support from the local authority. (Young adult care leavers are entitled to time limited support. Leaving care services may change at the age of 21 and cease at the age of 25, unless the young adult is in education at that point). See also the Sentencing Children and Young People Guideline (paragraphs 1.16 and 1.17).
Where an offender has turned 18 between the commission of the offence and conviction the court should take as its starting point the sentence likely to have been imposed on the date at which the offence was committed, but applying the purposes of sentencing adult offenders. See also the Sentencing Children and Young People Guideline (paragraphs 6.1 to 6.3).
When considering a custodial or community sentence for a young adult the Probation Service should address these issues in a PSR.