What type of data is mandatory in a non-unique identifier inquiry?

Prepare for the National Crime Information Center (NCIC) Test. Study flashcards and multiple choice questions with detailed hints and explanations. Ace your exam!

In a non-unique identifier inquiry, the mandatory data required is demographical data. This type of information typically includes details such as the person's name, date of birth, sex, and other identifying characteristics that help narrow down the search. Non-unique identifiers are used in circumstances where a unique identifier, such as a Social Security number or driver's license number, is not available. Demographical data allows law enforcement and authorized users to effectively search and filter records to identify the correct individual among many who may share similar names or characteristics.

While physical descriptions, personal identifiers, and medical records may be relevant in certain contexts, they are not universally required for a non-unique identifier inquiry. Physical descriptions can enhance the search but do not substitute for the foundational demographic data necessary to initiate a search in the NCIC system. Personal identifiers like Social Security numbers serve as unique identifiers rather than general demographic information, and medical records are typically not involved in the inquiry process for criminal records. Thus, the focus on demographical data aligns with the operational procedures outlined in the NCIC guidelines for effective and accurate inquiries.

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