33 In The Queen v Lavender (2005) 222 CLR 67 Kirby J at [88]-[95] made the following observations when considering whether the rule of strict interpretation was of assistance in construing s 18 of the Crimes Act 1900 (NSW). At paragraph [93] his honour cites Beckwith as an authority for the principle that the rule is a one of last resort.
[88] In the past, including in this Court, it has been conventional to say that, where one has been left in real doubt as to the meaning of a penal provision, that provision will be construed strictly and in favour of the person potentially affected by the provision. This rule was originally conceived in the seventeenth century as a means of mitigating the harshness of penal legislation, breach of which often attracted the death penalty. Since that time, the rule has been transplanted and applied in various other legislative contexts, such as legislation purporting to impose taxation, or to interfere with the enjoyment of, or to take away rights to, private property.
[89] The rule was conventionally justified on several grounds. First, it was suggested that because of the inequality between the resources of the state and accused persons, the rule played an important function in levelling the field of combat. In this sense, the rule was closely related to principles that are designed, among other things, to achieve an equilibrium between the state and accused persons, such as the presumption of innocence, the "right to silence", the requirement that the prosecution prove the elements of an offence to the criminal standard of proof and the common law requirement that jury verdicts be unanimous.
[90] Secondly, it was sometimes asserted that the rule reflected the ideal that it is unfair to convict a person unless they have had fair warning of the reach of the criminal law concerned. This argument was explained by Holmes J delivering the opinion of the Court in McBoyle v United States of America . "[I]t is reasonable that a fair warning should be given to the world ... of what the law intends to do if a certain line is passed". In this respect, the rule of strict construction was closely allied with the presumption that Parliament did not intend statutes creating liabilities to have retrospective operation.
[91] This second justification has been criticised on the basis that "[t]hose who skate on thin ice can hardly expect to find a sign which will denote the precise spot where they may fall in". However, such an argument, if accepted, could condone careless drafting practices. Because the criminal law is the most coercive instrument which the state possesses and because its application has potential implications for the loss of personal liberty, the legislature would normally be obliged to spell out with sufficient clarity the conduct that attracts criminal liability.
[92] Thirdly, the rule of strict interpretation has sometimes been justified as upholding the separation of the respective roles of the legislature and the judiciary in determining the content of the criminal law. Courts have now relinquished the power to create new categories of criminal offences. Interpreting penal statues narrowly preserves this power exclusively for the legislature; but on terms of fairness to potential accused.
[93] Confinement of the rule to a last resort : In recent times the rule of strict interpretation has "lost much of its importance", and is now generally regarded as a rule of "last resort". It comes into operation when the normal principles of interpretation have "run out", if "all other indicia [have] failed" to provide guidance. It applies "if [there is] genuine doubt as to the intention of the legislature and if there are no considerations indicating the desirability of a wide interpretation of the statute".
[94] The ordinary rules of construction are now first applied, including in the ascertainment of the meaning of penal and taxing legislation. In such categories, as much as anywhere else, it is the duty of a court to ascertain, and give effect to, the purpose of the legislature as expressed in the language enacted by Parliament. To some extent the demise in the attractiveness of the former rule of construction has followed the recognition by courts of the legitimacy of modern Parliaments, elected as they now are by universal suffrage. Artificial categories and exceptions are now less in favour than they formerly were. Nevertheless, somewhat like the contra proferentem rule (the occasionally useful principle of construction of insurance and like documents) the principle suggesting a stricter approach to the interpretation of penal legislation may sometimes prove useful when ambiguity seems intractable.
[95] In the present case, a strict approach to interpretation of the contested provisions of the Crimes Act is of limited use. This is so because it is clear that Parliament provided for the offences of murder and of manslaughter and attached penal consequences to conviction. The debate about the meaning of s 18 of the Crimes Act is not advanced very far by incantations about the penal character of such a provision. This is especially so when the history of the offence of homicide is remembered, including the confusion and inconsistencies in that history, and the fact that an offence of manslaughter of broad ambit was deliberately preserved. Disputes over the detailed elements of that crime are unlikely to be resolved at this level of generality. Nevertheless, to the extent that the principle governing the interpretation of ambiguous provisions of penal statutes is available, the respondent invoked it to support the interpretation favoured by the majority in the Court of Criminal Appeal, pursuant to which he had been acquitted. So it is a rule to be kept in mind - but probably at the back of the mind leaving more pressing arguments to command the foreground. (Footnotes omitted)