Glossary of NCIC Security Field Codes

Replies to inquiries from NCIC are divided into parts called “fields.” Each field is an item of data such as an issuer, owner, etc. All the fields put together make up the “record format” for that particular message. All the fields in a message are identified by a code, followed by a slash (/), and then the data for that field. Below is a list of the field identifiers that are used by NCIC to assist you in understanding these messages.