Methods
There are several methods for the measuring of crime. Public surveys are occasionally conducted to estimate the amount of crime that has not been reported to police. Such surveys are usually more reliable for assessing trends. However, they also have their limitations and generally don't procure statistics useful for local crime prevention, often ignore offenses against children and do not count offenders brought before the criminal justice system.
Law enforcement agencies in some countries offer compilations of statistics for various types of crime.
Two major methods for collecting crime data are law enforcement reports, which only reflect crimes that are reported, recorded, and not subsequently canceled; and victim study (victimization statistical surveys), which rely on individual memory and honesty. For less frequent crimes such as intentional homicide and armed robbery, reported incidents are generally more reliable, but suffer from under-recording; for example, no criming in the United Kingdom sees over one third of reported violent crimes being not recorded by the police. [2] Because laws and practices vary between jurisdictions, comparing crime statistics between and even within countries can be difficult: typically only violent deaths (homicide or manslaughter) can reliably be compared, due to consistent and high reporting and relative clear definition.
The U.S. has two major data collection programs, the Uniform Crime Reports from the FBI and the National Crime Victimization Survey from the Bureau of Justice Statistics. However, the U.S. has no comprehensive infrastructure to monitor crime trends and report the information to related parties such as law enforcement. [3]
Research using a series of victim surveys in 18 countries of the European Union, funded by the European Commission, has reported (2005) that the level of crime in Europe has fallen back to the levels of 1990, and notes that levels of common crime have shown declining trends in the U.S., Canada, Australia and other industrialized countries as well. The European researchers say a general consensus identifies demographic change as the leading cause for this international trend. Although homicide and robbery rates rose in the U.S. in the 1980s, by the end of the century they had declined by 40%. [3]
However, the European research suggests that "increased use of crime prevention measures may indeed be the common factor behind the near universal decrease in overall levels of crime in the Western world", since decreases have been most pronounced in property crime and less so, if at all, in contact crimes. [4] [5] [6]
Surveys
Because of the difficulties in quantifying how much crime actually occurs, researchers generally take two approaches to gathering statistics about crime.
However, as officers can only record crime that comes to their attention and might not record a matter as a crime if the matter is considered minor and is not perceived as a crime by the officer concerned.
For example, when faced with a domestic violence dispute between a couple, a law enforcement officer may decide it is far less trouble to arrest the male party to the dispute, because the female may have children to care for, despite both parties being equally culpable for the dispute. This sort of pragmatic decisionmaking asked if they are victims of crime, without needing to provide any supporting evidence. In these surveys it is the participant's perception, or opinion, that a crime occurred, or even their understanding about what constitutes a crime that is being measured.
As a consequence differing methodologies may make comparisons with other surveys difficult.
One way in which, while other types of crime are under reported. These surveys also give insights as to why crime is reported, or not. The surveys show that the need to make an insurance claim, seek medical assistance, and the seriousness of an offence tend to increase the level of reporting, while the inconvenience of reporting, the involvement of intimate partners and the nature of the offending tend to decrease reporting.
This allows degrees of confidence to be assigned to various crime statistics. For example: Motor vehicle thefts are generally well reported because the victim may need to make the report for an insurance claim, while domestic violence, domestic child abuse and sexual offences are frequently significantly under-reported because of the intimate relationships involved, embarrassment and other factors that make it difficult for the victim to make a report.
Attempts to use victimisation surveys from different countries for international comparison had failed in the past. A standardised survey project called the International Crime Victims Survey [8] Results from this project have been briefly discussed earlier in this article. In 2019, the Global Organized Crime Index found that DRC had the highest rate of criminality. [9] [10]
Annual estimates of crimes committed in the United States range from eleven to thirty million as many acts go unreported. [11] [12] [13]
An estimated hundred million Americans have a criminal record. [14] [15]
In ordinary language, a crime is an unlawful act punishable by a state or other authority. The term crime does not, in modern criminal law, have any simple and universally accepted definition, though statutory definitions have been provided for certain purposes. The most popular view is that crime is a category created by law; in other words, something is a crime if declared as such by the relevant and applicable law. One proposed definition is that a crime or offence is an act harmful not only to some individual but also to a community, society, or the state. Such acts are forbidden and punishable by law.
Victimology is the study of victimization, including the psychological effects on victims, the relationship between victims and offenders, the interactions between victims and the criminal justice system—that is, the police and courts, and corrections officials—and the connections between victims and other social groups and institutions, such as the media, businesses, and social movements.
More Guns, Less Crime is a book by John R. Lott Jr. that says violent crime rates go down when states pass "shall issue" concealed carry laws. He presents the results of his statistical analysis of crime data for every county in the United States during 29 years from 1977 to 2005. Each edition of the book was refereed by the University of Chicago Press. As of 2019, the book is no longer published by the University of Chicago Press. The book examines city, county and state level data from the entire United States and measures the impact of 13 different types of gun control laws on crime rates. The book expands on an earlier study published in 1997 by Lott and his co-author David Mustard in The Journal of Legal Studies and by Lott and his co-author John Whitley in The Journal of Law and Economics, October 2001.
A violent crime, violent felony, crime of violence or crime of a violent nature is a crime in which an offender or perpetrator uses or threatens to use harmful force upon a victim. This entails both crimes in which the violent act is the objective, such as murder, assault, rape and assassination, as well as crimes in which violence is used as a method of coercion or show of force, such as robbery, extortion and terrorism. Violent crimes may, or may not, be committed with weapons. Depending on the jurisdiction, violent crimes may be regarded with varying severities from homicide to harassment.
Articles related to criminology and law enforcement.
In the United States, the relationship between race and crime has been a topic of public controversy and scholarly debate for more than a century. Crime rates vary significantly between racial groups; however, academic research indicates that the over-representation of some racial minorities in the criminal justice system can in part be explained by socioeconomic factors, such as poverty, exposure to poor neighborhoods, poor access to public and early education, and exposure to harmful chemicals and pollution. Racial housing segregation has also been linked to racial disparities in crime rates, as black Americans have historically and to the present been prevented from moving into prosperous low-crime areas through actions of the government and private actors. Various explanations within criminology have been proposed for racial disparities in crime rates, including conflict theory, strain theory, general strain theory, social disorganization theory, macrostructural opportunity theory, social control theory, and subcultural theory.
Sex differences in crime are differences between men and women as the perpetrators or victims of crime. Such studies may belong to fields such as criminology, sociobiology, or feminist studies. Despite the difficulty of interpreting them, crime statistics may provide a way to investigate such a relationship from a gender differences perspective. An observable difference in crime rates between men and women might be due to social and cultural factors, crimes going unreported, or to biological factors. The nature or motive of the crime itself may also require consideration as a factor. Gendered profiling might affect the reported crime rates.
Crime in Australia is managed by various law enforcement bodies, the federal and state-based criminal justice systems and state-based correctional services.
Crime in Sweden is defined by the Swedish Penal Code and in other Swedish laws and statutory instruments.
A sex offender is a person who has committed a sex crime. What constitutes a sex crime differs by culture and legal jurisdiction. The majority of convicted sex offenders have convictions for crimes of a sexual nature; however, some sex offenders have simply violated a law contained in a sexual category. Some of the serious crimes which result in a mandatory sex-offender classification are sexual assault, statutory rape, bestiality, child sexual abuse, incest, and rape.
The Crime Survey for England and Wales is a systematic victim study, currently carried out by Verian on behalf of the Office for National Statistics (ONS). Curated by the UK Data Service, it can be accessed for research on their website: https://ukdataservice.ac.uk. The survey seeks to measure the amount of crime in England and Wales by asking around 50,000 people aged 16 and over, living in private households, about the crimes they have experienced in the last year. From January 2009, 4,000 interviews were also conducted each year with children 10–15 years old, although the resulting statistics remain experimental. The survey is comparable to the National Crime Victimization Survey conducted in the United States.
A victim study is a survey, such as the British Crime Survey, that asks a sample of people which crimes have been committed against them over a fixed period of time and whether or not they have been reported to the police. Victim studies may be carried out at a national or local level.
Deterrence in relation to criminal offending is the idea or theory that the threat of punishment will deter people from committing crime and reduce the probability and/or level of offending in society. It is one of five objectives that punishment is thought to achieve; the other four objectives are denunciation, incapacitation, retribution and rehabilitation.
Crime has been recorded in the United States since its founding and has fluctuated significantly over time. Most available data underestimate crime before the 1930s, giving the false impression that crime was low in the early 1900s and had a sharp rise after. Instead, violent crime during the colonial period was likely three times higher than the highest modern rates in the data we have, and crime had been on the decline since colonial times. Within the better data for crime reporting and recording available starting in the 1930s, crime reached its broad, bulging modern peak between the 1970s and early 1990s. After 1992, crime rates have generally trended downwards each year, with the exceptions of a slight increase in property crimes in 2001 and increases in violent crimes in 2005–2006, 2014–2016 and 2020–2021. As of July 1, 2024 violent crime was down and homicides were on pace to drop to 2015 levels by the end of the year.
Crime in Poland refers to the incidence, deterrence, and handling of criminal activity in the Republic of Poland by Polish law enforcement agencies charged with ensuring public safety and maintaining order. Poland ranks favorably in terms of public safety, with one of the lowest homicide rates in Europe. Poland was ranked 25th in the 2022 Global Peace Index and scored 0.0 on the 2023 Global Terrorism Index.
The International Crime Victims Survey (ICVS) is a large scale international survey project about crime and victimization. The project was set up to fill the gap in adequate recording of offenses by the police for purposes of comparing crime rates in different nations and to provide a crime index independent of police statistics as an alternative standardized measure.
Victimisation is the state or process of being victimised or becoming a victim. The field that studies the process, rates, incidence, effects, and prevalence of victimisation is called victimology.
Crime in New Zealand encompasses criminal law, crime statistics, the nature and characteristics of crime, sentencing, punishment, and public perceptions of crime. New Zealand criminal law has its origins in English criminal law, which was codified into statute by the New Zealand parliament in 1893. Although New Zealand remains a common law jurisdiction, all criminal offences and their penalties are codified in New Zealand statutes.
Overall, rates of crime in Spain are relatively low in comparison to other European countries, with the notable exception of robberies. In 2022 it was listed as number two out of 35 states in Europe with regard to the number of police-recorded robberies relative to population size, although in 2020 it had a lower homicide rate than the European Union average.
Rape in Sweden has a legal definition described in Chapter 6 in the Swedish Penal Code. Historically, rape has been defined as forced sexual intercourse initiated against a woman or man by one or several people, without consent. In recent years, several revisions to the definition of rape have been made to the law of Sweden, to include not only intercourse but also comparable sexual acts against someone incapable of giving consent, due to being in a vulnerable situation, such as a state of fear or unconsciousness.
