IC codes are shorthand terms used by the British police in radio communications to describe the apparent ethnicity of a suspect. The codes are based on a police officer's perceived view of an individual's ethnicity, as opposed to that individual's self-definition.
In most circumstances where an individual's ethnicity is recorded after spoken contact with police (such as a "Stop and Search" or arrest), police are required to use a different set of codes called SDE (Self Defined Ethnicity), or "16 + 1".
The IC codes are:
Some forces use IC7 as unknown ethnicity (IC7 has also been used as an identity for alien).
"IC" itself stands for "Identity Code", so "IC code" is a redundant acronym though still commonly used. The codes are also known as PNC or Phoenix Codes. Street Wardens and City Guardians (Westminster City Council) and Police Community Support Officers also use IC Codes on a regular basis.