33 The totality principle usually applies where an offender is to be sentenced for more than one offence or where he or she is serving a term of imprisonment, at the time of sentencing, for another offence. The principle comprises two aspects. First, the total effective sentence imposed on the offender must bear a proper relationship to the overall criminality involved in all of the offences (including those, if any, in respect of which the offender is still serving a term of imprisonment), viewed in their entirety, having regard to all relevant circumstances including those referable to the offender personally (including, for example, the desirability of accommodating any wish to rehabilitate). Secondly, the total effective sentence imposed on an offender should not constitute a 'crushing' sentence; that is, it should not destroy any reasonable expectation of useful life after release from custody. Generally see Postiglione v The Queen [1997] HCA 26; (1997) 189 CLR 295, 307 - 308 (McHugh J); Jarvis v The Queen (1993) 20 WAR 201, 216 (Anderson J); Johnson v The Queen [2004] HCA 15; (2004) 78 ALJR 616 [22]; Vlek v The Queen (Unreported, WASCA, Library No 990153, 29 March 1999), 12 (Anderson J); Carr v The State of Western Australia [2006] WASCA 125; (2006) 166 A Crim R 1 [6] (McLure JA), [66] (Buss JA).