(1) After section 205 of the Criminal Procedure (Scotland) Act 1995 insert -

"205ZA. Serious terrorism sentence

(1) This section applies where -

(a) a person is convicted on indictment of a serious terrorism offence,

(b) the offence was committed on or after the day on which section 6 of the Counter-Terrorism and Sentencing Act 2021 comes into force,

(c) the offender was aged 18 or over when the offence was committed,

(d) the court is of the opinion that there is a significant risk to members of the public of serious harm occasioned by the commission by the offender of further serious terrorism offences or other terrorism offences to which section 210A applies,

(e) the court does not impose a sentence of imprisonment for life or a sentence of detention for life in a young offenders institution,

(f) the court does not make an order for lifelong restriction, and

(g) the risk of multiple deaths condition is met.

(2) Where the offender is 21 years of age or over, the court must impose a serious terrorism sentence of imprisonment unless the court is of the opinion that there are exceptional circumstances which -

(a) relate to the offence or to the offender, and