A sentence of imprisonment cannot generally be suspended in relation to a defendant deemed to be a serious firearms offender and for a serious firearms offence - see sections 50 and 51 of the Sentencing Act 2017 (SA).
The court cannot substitute penalties or impose a single penalty under section 25 of the Sentencing Act 2017 (SA) in relation to the penalty otherwise imposed for serious firearm offences [see sections 49 and 51 of the Sentencing Act 2017 (SA)].
See section 49(1) for definitions of serious firearms offence and serious firearms offender.