In 1997, Crump successfully applied to the Supreme Court of NSW to convert his life sentence into a minimum term and an additional term.
Peter McInerney sentenced Crump to a minimum term of 30 years and an additional term for the remainder of his life. In response to this determination, the
Parliament of New South Wales passed legislation that was intended to ensure that ten named individuals remained incarcerated for the rest of their lives. The people named in Parliament were Baker and Crump, together with Michael Murphy, Leslie Murphy, Gary Murphy, John Travers and Michael Murdoch, who were convicted of the
murder of Anita Cobby; and Stephen Jamieson, Matthew Elliot and Bronson Blessington, who were convicted of the
murder of Janine Balding. The legislation required the Parole Board to give substantial weight to the recommendations, observations and comments made by the original sentencing court. Baker challenged this legislation in the
High Court of Australia, arguing that it was invalid and incompatible with the integrity, independence and impartiality of the Supreme Court. In October 2004, the High Court rejected his challenge, holding that there was nothing repugnant to the notion of judicial power in requiring significant weight be given to a past judicial recommendation. The effect of the 1997 determination by McInerney was that Crump had some prospect, however minimal, of being released on parole after November 2003. In 2001, the Parliament of NSW passed further legislation that was intended to ensure that Baker, Crump and other never-to-be-released prisoners could only ever be released on their deathbeds or if they were so incapacitated that they would pose a threat to nobody. In 2003, Crump sought parole; however, this was rejected by the Parole Board due to the 2001 legislation. In May 2012, the High Court rejected Crump's challenge to the 2001 legislation despite the
ad hominem component of legislation apparent in the Second Reading Speech. In February 2016, the
NSW Court of Criminal Appeal dismissed Crump's application for leave to appeal the 1997 sentence determination of McInerney. ==Media==