Brian Ross Martin was admitted to practise law in 1970, becoming an assistant Crown Prosecutor in Adelaide in 1974 and eventually the Senior Crown Prosecutor in 1982. He was appointed as a Queen's Counsel (QC) in 1984 and in 1991 was appointed Senior Counsel assisting the Royal Commission into WA Inc. Martin was appointed as the Commonwealth Director of Public Prosecutions in 1997 a position he held until taking up his appointment as a Judge of the South Australian Supreme Court. He was sworn in as the Northern Territory's fifth Chief Justice on 27 January 2004 following the retirement of Brian Frank Martin; and held the position until 2010.[2]
Justice Martin was the trial judge for the trial of R v Murdoch, which commenced with a voir dire in April 2005 and the trial proper began on 17 October 2005, and was completed with a verdict of guilty on 13 December 2005. He also presided over the Snowtown murder cases involving the conviction of John Bunting, Robert Wagner, and James Vlassakis for murder, and Mark Haydon for helping to dispose of the bodies. The trial was one of the longest and most publicised in Australian legal history.[2][3][4][5][6][7]
In February 2012, Brian Martin was sworn in as an Acting Judge of the Western Australian Supreme Court, to preside over the trial of Lloyd Rayney who was charged with the August 2007 murder of his wife, Corryn Rayney.[8] Martin delivered his judgment, finding Rayney not guilty of his wife's murder, in November 2012.[9]
^Reporter: Mike Sexton (17 October 2003). "Adelaide's Brian Martin Now Chief Justice of the Northern Territory". Stateline. Adelaide. ABC TV. Transcript.