2. On appeal to the Court of Criminal Appeal of Queensland, it was held that s.4(1)(b) of the Commonwealth Prisoners Act 1967 (Cth) required the Court to fix non-parole periods in the case of each of the applicants, each being a "federal offender" as defined in that Act. Although the Court of Criminal Appeal left the head sentences undisturbed, it fixed non-parole periods in each case as authorized by s.4(1)(b). The non-parole period was fixed, in the case of Leeth, at 12 1/2 years; in the case of William Bruce Kirk, at 8 1/2 years; in the case of Dale Stewart Kirk, at 8 1/2 years; and, in the case of Donovan, at 9 1/2 years. In fixing the non-parole periods, the Court of Criminal Appeal had regard to sentences imposed in cases in New South Wales which the Court regarded as comparable - in particular, the cases of two prisoners, Cornwell and Bull. Connolly J., who delivered the judgment of the Court, noted that in New South Wales a sentence commences to run from the date when the offender is taken into custody whereas in Queensland a sentence commences to run from the date when the sentence is pronounced. Accordingly, the Court took the non-parole periods fixed in the cases of Cornwell and Bull as benchmarks, but adjusted those periods to take account of the time which the respective applicants had spent in custody before sentencing.