Just ran Jamair's post through a US government decryption program and came up with this.
Of the Police Air Wing Cessna 208's, VH-PSY is in Cairns, VH-PSV is at Mount Isa and VH-PSQ is in Brisbane. There is a Cessna Citation at Brisbane, VH-PSU, a Beech 1900 VH-PSK at Cairns and a Brittain Norman Islander VH-PSZ (possibly) on Horn Island.
Hope this helps.
