University of Northern Iowa

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Crime Stastistics - Uniform Crime Report Definitions

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Crime Definitions From the Uniform Crime Reporting Handbook

Murder
The willful (nonnegligent) killing of one human being by another.

Robbery
The taking or attempting to take anything of value from the care, custody, or control of a person or persons by force or threat of force or violence and/or by putting the victim in fear.

Aggravated Assault
An unlawful attack by one person upon another for the purpose of inflicting severe or aggravated bodily injury. This type of assault usually is accompanied by the use of a weapon or by means likely to produce death or great bodily harm. (It is not necessary that injury result from an aggravated assault when a gun, knife, or other weapon is used which could and probably would result in serious personal injury if the crime were successfully completed.)

Burglary
The unlawful entry of a structure to commit a felony or a theft. For reporting purposes this definition includes: unlawful entry with intent to commit a larceny or felony; breaking and entering with intent to commit a larceny; housebreaking; safecracking; and all attempts to commit any of the aforementioned.

Motor Vehicle Theft
The theft or attempted theft of a motor vehicle. (Classify as motor vehicle theft all cases where automobiles are taken by persons not having lawful access even though the vehicles are later abandoned do include joyriding.)

Weapon Law Violations
The violation of laws or ordinances dealing with weapon offenses, regulatory in nature, such as: manufacture, sale, or possession of deadly weapons; carrying deadly weapons, concealed or openly; furnishing deadly weapons to minors; aliens possessing deadly weapons; and all attempts to commit any of the aforementioned.

Drug Abuse Violations
Violations of State and local laws relating to the unlawful possession, sale, use, growing, manufacturing, and making of narcotic drugs. The relevant substances include: opium or cocaine and their derivatives (morphine, heroin, codeine); marijuana; synthetic narcotics (demerol, methadones); and dangerous nonnarcotic drugs (barbituates, benzedrine).

Liquor Law Violations
The violation of laws or ordinances prohibiting: the manufacture, sale, transporting, furnishing, possessing of intoxicating liquor; maintaining unlawful drinking places; bootlegging; operating a still; furnishing liquor to a minor or intemperate person; using a vehicle for illegal transportation of liquor; drinking on a train or public conveyance; and all attempts to commit any of the aforementioned. (Drunkenness and driving under the influence are not included in this definition.)

Sex Offenses Definitions From the National Incident-Based Reporting System Edition of the Uniform Crime Reporting Program

Sex Offenses - Forcible
Any sexual act directed against another person, forcibly and/or against that personís will; or not forcibly or against the personís will where the victim is incapable of giving consent.

  1. Forcible Rape: The carnal knowledge of a person, forcibly and/or against that person's will; or not forcibly or against the person's will where the victim is incapable of giving consent because of his/her temporary or permanent mental or physical incapacity (or because of his/her youth).
  2. Forcible Sodomy: Oral or anal sexual intercourse with another person, forcibly and/or against that person's will; or not forcibly against the person's will where the victim is incapable of giving consent because of his/her youth or because of his/her temporary or permanent mental or physical incapacity.
  3. Sexual Assault With An Object: The use of an object or instrument to unlawfully penetrate, however slightly, the genital or anal opening of the body of another person, forcibly and/or against that person's will; or not forcibly or against the person's will where the victim is incapable of giving consent because of his/her youth or because of his/her temporary or permanent mental or physical incapacity.
  4. Forcible Fondling: The touching of the private body parts of another person for the purpose of sexual gratification, forcibly and/or against that person's will; or, not forcibly or against the person's will where the victim is incapable of giving consent because of his/her youth or because of his/her temporary or permanent mental incapacity.

Sex Offenses: Nonforcible
Unlawful, non-forcible sexual intercourse.

  1. Incest: Non-forcible sexual intercourse between persons who are related to each other within the degrees wherein marriage is prohibited by law.
  2. Statutory Rape: Non-forcible sexual intercourse with a person who is under the statutory age of consent.

Source: US Dept. of Education adapted from the Federal Register, April 29, 1994, Vol. 59, No. 82.