[18] The maximum penalty for each offence was five years imprisonment. Here the offender was relatively young, had no previous convictions, had an excellent employment record and had, in the scheme of things, relatively few images in his possession. Although they were unquestionably depraved paedophilic images, unlike in Richardson they were not patently brutal. There was no suggestion of dissemination of the material to others. The learned primary judge proceeded on the basis that the images had not been purchased so that the aggravating aspect of commerciality was absent. Mr Riley also pleaded guilty in a timely fashion. Rehabilitation was in these circumstances an important consideration. Deterrence is always an important consideration when sentencing for offences of this kind. The evil and exploitive industry of child pornography is fed by those like Mr Riley who download it from the internet. Others who might be similarly tempted should know they are likely to be detected, charged with a criminal offence, have a conviction recorded with all that ensues from it, be publicly shamed and risk being sentenced to a period of actual imprisonment, even if first offenders. In addition, any employment involving children and young people will be closed to them and they will have onerous reporting conditions for many years. But in the light of s 9(2)(a) Penalties and Sentences Act the primary judge erred in not considering whether the aspect of deterrence could be satisfactorily met in the present case by the imposition of a non-custodial sentence as in Richardson. As a result, the sentencing discretion miscarried and this Court was required to re-exercise it. Mr Riley had served 15 days actual imprisonment at the date of the hearing of this application. In the circumstances, the appropriate sentence on each count was six months imprisonment suspended forthwith with an operational period of 12 months.