56 Properly analysed, there is in my view no tension between the principle explained in Verdins and those authorities which have dealt with gambling addiction. Evidence may establish that an offender suffers from an impulse control disorder in the form of pathological gambling listed in DSM-IV-TR, the essential feature of which is 'persistent and recurrent maladaptive gambling behaviour that disrupts personal family or vocational pursuits'. The relevance of the disorder to the sentence to be imposed, is then to be assessed in accordance with the principles restated in Verdins. That assessment will generally lead to the conclusion that the presence of a gambling addiction should not, on that ground alone, result in any appreciable moderation of the sentence. There are a number of reasons why that will be so. Firstly in most cases, the nature and severity of the symptoms of the disorder, considered in conjunction with the type and circumstances of the offending, will not warrant a reduction in moral culpability or any moderation of general deterrence. Secondly, it will frequently be the case that crimes associated with gambling addiction will have been repeated and extended over a protracted period. The long term chase to recoup losses is characteristic of those with such a disorder. Thirdly, in cases involving dishonesty, the crimes will commonly be sophisticated, devious, and the result of careful planning. Fourthly, the gravity of such offences, if there is a breach of trust or confidence, will commonly attract an increased penalty making such offences more appropriate vehicles for general deterrence. Fifthly, when offences of this nature are committed over extended periods, the prominent hypothesis will be that the offender has had a degree of choice which they have continued to exercise as to how they finance their addiction. This has often provided a reason for a general reluctance to temper the weight given to general deterrence or to reduce moral culpability because an offender has found it difficult to control their gambling obsession. Finally, and perhaps most importantly, the nexus of the addiction to the crime will often be unsubstantiated. The disorder will not generally be directly connected to the commission of the crime, the addiction providing only a motive and explanation for its commission. Hence, by contrast to a mental condition that impairs an offender's judgment at the time of the offence, such addiction will generally be viewed as only indirectly responsible for the offending conduct.
57 The appellant's conduct was premeditated, calculated, and systematic. Counsel for the appellant properly acknowledged that, to satisfy her addiction, the appellant had repeatedly exercised the choice to re-offend over a lengthy period and that this bore upon the weight to be given to her addiction. In my view the learned sentencing judge made no error in not mitigating the sentence to any significant extent because of the appellant's gambling addiction. The existence of the disorder did not, on that ground alone, necessitate any reduction in moral culpability or amelioration of general deterrence.[13]