6.3 Crime and the law  (Page 3/22)

Crime statistics

What crimes are people in the United States most likely to commit, and who is most likely to commit them? To understand criminal statistics, you must first understand how these statistics are collected.

Since 1930, the Federal Bureau of Investigation has been collecting and publishing an archive of crime statistics. Known as Uniform Crime Reports (UCR), these annual publications contain data from approximately 17,000 law enforcement agencies (FBI 2011). Although the UCR contains comprehensive data on police reports, it fails to take into account the fact that many crimes go unreported due to the victim’s unwillingness to report them, largely based on fear, shame, or distrust of the police. The quality of the data collected by the UCR also varies greatly. Because officers’ approaches to gathering victims’ accounts frequently differed, important details were not always asked for or reported (Cantor and Lynch 2000).

To offset this publication, in 1973 the U.S. Bureau of Justice Statistics began to publish a separate report known as the National Crime Victimization Survey (NCVS). The NCVS is a self-report study    . A self-report study is a collection of data acquired using voluntary response methods, such as questionnaires or telephone interviews. Each year, survey data are gathered from approximately 135,000 people in the United States on the frequency and type of crime they experience in their daily lives (BJS 2011). The surveys are thorough, providing a wider scope of information than was previously available. This allows researchers to examine crime from more detailed perspectives and to analyze the data based on factors such as the relationship between victims and offenders, the consequences of the crimes, and substance abuse involved in the crimes. Demographics are also analyzed, such as age, race, gender, location, and income level (National Archive of Criminal Justice Data 2010). The NCVS reports a higher rate of crime than the UCR.

Though the NCVS is a critical source of statistical information, disadvantages exist. “Non-response,” or a victim’s failure to participate in the survey or a particular question, is among them. Inability to contact important demographics, such as those who don’t have access to phones or frequently relocate, also skews the data. For those who participate, memory issues can be problematic for the data sets. Some victims’ recollection of the crimes can be inaccurate or simply forgotten over time (Cantor and Lynch 2000).

While neither of these publications can take into account all of the crimes committed in the country, some general trends may be noted. Crime rates were on the rise after 1960, but following an all-time high in the 1980s and 1990s, rates of violent and non-violent crimes once again started to decline.

In 2009, approximately 4.3 million violent crimes occurred in the United States, the majority being assault and robbery. An estimated 15.6 million nonviolent crimes took place, the most common being larceny. Less than half of all violent and nonviolent crimes were reported to the police (BJS 2010).