Police Scanner Codes 484 and 488 is for Petty theft.
Ten-codes, 10-codes, police codes (sometimes referred to as “police scanner codes”) are signals that are used by law enforcement and government agencies in two-way voice radio communication as numeric code words for frequently used messages. These codes are also used by private citizens in Citizen’s Band (CB) radio transmissions.
As per eInvestigator.com, there is no truly universal or official set of 10 codes, and the meanings of a particular signals can vary between one police jurisdiction and another. While law enforcement ten signals were intended to be a concise, standardized system, the proliferation of different meanings has rendered it somewhat useless for situations where people from different agencies and jurisdictions need to communicate.
In 2005, the United States Federal Emergency Management Agency (FEMA) began discouraging the use of ten-codes and other law enforcement radio signals due to their high variability in meaning between departments and agencies. In addition, the U.S. Department of Homeland Security may discontinue use of the signals.
Some organizations and municipalities also use other types of police radio codes. For example, the California Highway Patrol (CHP) uses “eleven-codes“, and the Port Authority Police uses “eight codes”. These were established in an attempt to have a new and unique set of signals.
Amateur radio ham operators do not use ten-codes. Instead they use something called Q codes, which are derived from Morse code. Use of the signals are highly discouraged in amateur radio use, especially among seasoned professionals. However, they are sometimes used by novice operators.
See List of Police Ten Codes at eInvestigator.com.