This has been heard used by the Ambo's & VicPol "NUPH" or "NUPHY", pronounced "Nuffy" - it means  needing urgent psychiatric help - this is a more informal code. <also some times referred to as a Section 10>         Thanks Brett

AIS - Accident Investigation Section
CIU - Criminal Investigation Unit
CPG - City Patrol Group
CPS - Community Policing Squad
GOA - Gone on arrival
IBR - Information Bureau of Records
MCU - Major Collision Unit
MNI - Master Name Index
NOD - No Offence Detected Also refered to as a Noddy
NPH - No Person Home
RED - Radio Electronics Division
SOG - Special Operations Group
TMU - Traffic Management Unit
VPC - Victorian Police Centre

If you have any additions please let me know.