Between 1979 and 1982 he completed his law degree then practiced at the Queensland bar.
Palmer became AFP commissioner in June 1994 and officially retired with the swearing-in of his replacement Mick Keelty in April 2001.
[1] Between 2004 and 2012 he was the Federal Government's Inspector of Transport Security, a position created after the 9/11 and Bali bombing terrorist incidents to review air, sea and land transport and off-shore critical infrastructure and advise government of the efficiency and effectiveness of existing security arrangements.
[2] Palmer is a recipient of the Australian Police Medal and in 1998 was admitted as an Officer of the Order of Australia (AO) for his work in "advancing the professionalisation of policing through the introduction of far-reaching anti-corruption processes and management practice reform.
"[3][4] In 1999 the Board of Governors of Charles Sturt University conferred Palmer with the award of Doctor of Letters (honoris causa) for his contribution to advancing policing in Australia.