(a) The sentence on count 1 was higher than the sentences imposed in respect of the other oral penetration counts.
(b) The judge considered that the period of the maximum penalty was a significant factor in determining the two sentences, as was evident, so it was said, from her Honour's reference in her sentencing remarks to the maximum sentence as indicating the seriousness of incest generally, and given the judge's observation that the offences here were "of a high order [of seriousness], as indeed is your culpability".
(c) The appellant was not sentenced as a serious sexual offender in relation to the two counts in question and thus, unlike the situation in respect of counts 3 to 7, her Honour was not required to pass sentence on those counts on the basis that the protection of the community was the principal purpose of the sentences.
It was argued that, even if the circumstances of the count 1 offending were more serious than those applicable to the other oral penetration counts, had the judge known of the true position as to the maximum penalty, she may have regarded that as effectively offsetting the more serious aspects of that offending and imposed a sentence in respect of count 1 which was similar to that imposed in respect of the other oral penetration counts. Alternatively, it was said, her Honour may have given more weight to the inapplicability to counts 1 and 2 of the serious offender provisions.