***In January 2020, as part of implementing a new citywide police incident reporting system the City began moving away from reporting crime to the FBI Unified Crime Reporting (UCR) Program and instead to the new National Incident-Based Reporting System (NIBRS) format. For this reason, 2020 UCR data may have inconsistencies and/or inaccuracies. A filtered view of UCR data is available for 2011-2019 at https://citydata.mesaaz.gov/Police/Crime-Reporting-Statistics-Uniform-Crime-Reporting/bfen-qa5d

As of January 1, 2021, the National Incident-Based Reporting System (NIBRS) became the national crime data collection program. NIBRS was implemented to improve the overall quality of crime data collected by law enforcement, by capturing details on each single crime incident, as well as on separate offenses within the same incident. The historic Summary Reporting System (SRS) data collection, which collects more limited information than the more robust NIBRS, was phased out to make Uniform Crime Reporting (UCR) a NIBRS-only data collection.

Coming soon, look for a new dataset based on NIBRS, which will provide more complete and comprehensive data for law enforcement, researchers, and the public.

The Uniform Crime Reporting Program collects statistics on the number of offenses known to City of Mesa Police Department. Address and Location data are not exact location of incidents and have been rounded to nearest hundred block. Lat/Long are approximations only based on rounded hundred block. Part 1 offenses are reported monthly and are chosen by the Federal Bureau of Investigation (FBI) because they are serious crimes, they occur with regularity in all areas of the country, and they are likely to be reported to police. Part I offenses are defined as: Criminal homicide, Forcible Rape, Robbery, Aggravated Assault, Burglary (breaking or entering), Larceny-theft (except motor vehicle theft), Motor vehicle theft and Arson.

The data within only represent 2019 and prior. As of January 2020, Mesa PD transitioned crime reporting to the FBI Unified Crime Reporting (UCR) Program from the Summary Reporting System (SRS) format to the new National Incident-Based Reporting System (NIBRS) format.
As of January 1, 2021, the National Incident-Based Reporting System (NIBRS) became the national crime data collection program.

NIBRS was implemented to improve the overall quality of crime data collected by law enforcement, by capturing details on each single crime incident, as well as on separate offenses within the same incident. The historic Summary Reporting System (SRS) data collection, which collects more limited information than the more robust NIBRS, was phased out to make Uniform Crime Reporting (UCR) a NIBRS-only data collection.

The data within only represent 2019 and prior. As of January 2020, Mesa PD transitioned crime reporting to the FBI Unified Crime Reporting (UCR) Program from the Summary Reporting System (SRS) format to the new National Incident-Based Reporting System (NIBRS) format. For current clearance rate data based on NIBRS reporting standard please navigate to: https://citydata.mesaaz.gov/Police/Police-Case-Clearance-Rates/wzgc-a7ci

A case is considered “cleared” when it is cleared by arrest or exceptional means. Cases credited as “cleared” in a given month or year may have been opened in a previous month or year. For this reason, the clearance rate for a given period may be above 100%. For information and definitions about calculating clearance rates visit https://ucr.fbi.gov/crime-in-the-u.s/2018/crime-in-the-u.s.-2018/topic-pages/clearances

***The data within only represent 2019 and prior. As of January 2020, Mesa PD transitioned crime reporting to the FBI Unified Crime Reporting (UCR) Program from the Summary Reporting System (SRS) format to the new National Incident-Based Reporting System (NIBRS) format. For current crime statistics data based on NIBRS reporting standard please navigate to: https://citydata.mesaaz.gov/Police/Police-NIBRs-Crimes-Per-1000-Residents/ieqc-zzz4***

The Uniform Crime Reporting (UCR) Program collects statistics on the number of offenses known to City of Mesa Police Department. In Part I, the UCR indexes reported incidents of crimes that are broken into two categories: violent and property crimes. Aggravated assault, forcible rape, murder, and robbery are classified as violent, while arson, burglary, larceny-theft, and motor vehicle theft are classified as property crimes. City of Mesa population 2011-2019 based on U.S. Census estimates; 2019-2025 based on Maricopa County Association of Governments (MAG) estimate