69. Sentencing for a conspiracy offence may be a difficult exercise. Although the sentencing court must take into account all the circumstances of the offence (including the overt acts, some of which, incidentally, may be completed offences), it must not, in effect, sentence the offender for completed offences for which the offender has been neither charged nor convicted. In the result, when sentencing for a conspiracy offence, the court should take into account overt acts (including overt acts that, incidentally, may be completed offences) insofar as they reflect on "the content and duration and reality of the conspiracy", but must not proceed on the basis that the conspiracy charge is a rolled up charge that conveniently captures a completed offence or offences and thereby warrants the imposition of a heavier penalty: Savvas v The Queen (1995) 183 CLR 1, in which the Court approved Hoar. The expression "the content and duration and reality of the conspiracy" derives from R v Kane [1975] VicRp 64; [1975] VR 658 at 661.