Indeed, let us use the IRAC approach to analyse a criminal law case inside the Australian jurisdiction: Issue The matter at hand is to the determination of whether the defendant, John Smith, may be prosecuted for the crime of robbery in accordance with Australian penal legislation. Rule In Australia, robbery is legally defined as the act of unlawfully stealing someone else's property in the presence of another person, with the intention of permanently depriving them of that property. This crime is further characterised by the use or threat of force. In order to establish the crime of robbery, the prosecution must provide evidence for both the actus reus (the physical act) and the mens rea (the guilty state of mind) aspects of the offence.

Application John Smith forcibly stole a wallet from an individual in a public setting, suggesting the use of physical coercion. The actus reus component, which involves forcefully snatching the wallet, is evident. It is essential to take into account the mens rea component, which requires establishing that John Smith had the intention to permanently deprive the victim of their pocketbook. Upon scrutiny, it has been shown that John Smith was cognizant of the victim's existence and forcibly stole the wallet with the aim of retaining it for his own benefit. This exemplifies the essential mens rea required for the offence of robbery. Robbery is characterised by the use of physical force or the intimidation of force. If John Smith's conduct did not entail physical coercion or the intimidation of physical harm, but instead happened in a way that may be classified as larceny or theft, the accusation of robbery may not be suitable.

Conclusion Based on the facts supplied, it is evident that there are sufficient reasons to accuse John Smith of committing robbery according to Australian penal law. Both the actus reus, which involves forcefully stealing the wallet, and the mens rea, which involves the purpose to permanently deprive, seem to be present in this case of robbery. Nevertheless, it is crucial to verify the presence of the force or the threat of force element, as it serves to differentiate robbery from other offences linked to stealing.