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NIBRS Estimation and Extract File Creation Methodology Report

NCJ Number
310516
Author(s)
Marcus Berzofsky, DrPH, RTI International; Dan Liao, PhD, RTI International; G. Lance Couzens, RTI International; Ian Thomas, RTI International; Caroline Kery, RTI International; Kim Janda, RTI International; Mark Pope, Ms, RTI International
Date Published
December 2025
Description

This BJS-funded report was produced by RTI International. It describes the methodology and procedures used by BJS to create the annual National Incident-Based Reporting System (NIBRS) National Estimates and Data Extract Files. Covering 12 key topic areas, the report describes the receipt and processing of NIBRS data from the FBI, as well as the data quality checks performed. It also outlines the procedures used for the NIBRS Estimation Program, including the indicators to be estimated, imputation, and weighting.

Date Published: December 18, 2025