"3(1) If - (a) the case does not fall within paragraph 2(1) but the court considers that the seriousness of the offence ... is particularly high, and (b) the offender was aged 18 or over when the offence was committed, the appropriate starting point, in determining the minimum term, is 30 years."
"That is not to say that there will not be cases where death is caused by deliberate arson in circumstances similar to the facts of this case which will properly be described as being particularly serious for the purposes of Schedule 21 ... Inevitably, these are and will be fact-sensitive and difficult assessments for a judge to make."