NIBRS 2011 Home

Criminal Justice Information Services Division

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A Word About NIBRS

The National Incident-Based Reporting System, or NIBRS, was created in 1991 to improve the quantity and quality of crime data collected by law enforcement. It captures more detailed information of each single crime occurrence than the Uniform Crime Reporting (UCR) Program's traditional Summary Reporting System, collecting data on when and where crime takes place, what form it takes, and the characteristics of victims and perpetrators.

NIBRS 2011, the first published compilation of annual data, represents crime data from calendar year 2011 reported by 5,880 law enforcement agencies around the nation, approximately 32 percent of all UCR agencies. The data includes information on incidents, offenses, victims, and known offenders for 46 specific crimes in 22 major offense categories. It captures data such as the age, sex, and race of victims, offenders, and arrestees; crime locations and times of day; and the type of weapons and force involved. The report includes a total of 56 tables—32 tables on offense categories and 24 tables on sex offenses.

Incidents, Offenses, Victims, and Known Offenders by Offense Category, 2011

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Offense Category	Incidents¹	Offenses	Victims²	Known Offenders ^{3, 4}
TOTAL	4,926,829	5,643,241	5,946,990	4,483,142

Crimes Against Persons Assault Offenses Homicide Offenses Kidnapping/Abduction Sex Offenses, Forcible Sex Offenses, Nonforcible	1,149,923 1,062,148 3,546 13,470 64,382 6,377	1,321,523 1,226,300 3,792 15,310 69,356 6,765	1,321,523 1,226,300 3,792 15,310 69,356 6,765	1,302,160 1,207,239 4,482 16,156 67,550 6,733

Crimes Against Property Arson Bribery Burglary/Breaking & Entering Counterfeiting/Forgery Destruction/Damage/Vandalism Embezzlement Extortion/Blackmail Fraud Offenses Larceny/Theft Offenses Motor Vehicle Theft Robbery Stolen Property Offenses	3,687,952 15,467 293 575,394 74,131 810,046 17,000 1,217 245,301 1,683,877 161,169 72,143 31,914	3,687,952 15,467 293 575,394 74,131 810,046 17,000 1,217 245,301 1,683,877 161,169 72,143 31,914	3,991,316 17,790 317 647,672 81,407 871,667 17,635 1,329 271,205 1,782,977 166,660 95,737 36,920	2,351,209 10,736 358 330,730 68,336 445,632 18,184 1,277 167,875 1,074,312 84,215 107,763 41,791

Crimes Against Society Drug/Narcotic Offenses Gambling Offenses Pornography/Obscene Material Prostitution Offenses Weapon Law Violations	633,766 550,343 1,238 5,791 10,213 66,181	633,766 550,343 1,238 5,791 10,213 66,181	634,151 550,656 1,238 5,795 10,215 66,247	829,773 727,131 2,286 5,623 12,832 81,901

¹The actual number of incidents is 4,926,829. However, the column figures will not add to the total because incidents may include more than one offense type, and each appropriate offense type is denoted in this table. ²Victims represents the number of victims associated with each offense type. ³The term known offender does not imply the identity of the suspect is known, but only that an attribute of the suspect has been identified, which distinguishes him/her from an unknown offender.⁴The figures in the column Known Offenders do not include incidents with unknown offenders.

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Estimation

More than 18,000 law enforcement agencies nationwide report data to the FBI UCR Program. Although the program historically uses estimation procedures to account for missing data in presentations such as Crime in the United States, it did not apply any estimation procedures to the NIBRS data in this publication to account for missing data for jurisdictions that do not submit their UCR data via the NIBRS or of non-participating jurisdictions.

Additional UCR Publications

► Crime in the United States	► Law Enforcement Officers Killed and Assaulted
Offense, arrest, and clearance data as well as law enforcement staffing information.	Data regarding felonious and accidental in-the-line-of-duty deaths, as well as assaults on officers.
► Hate Crime Statistics
Data regarding crimes motivated by bias.