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 regarded with varying severities from homicide to harassment. There have been many theories regarding heat being the cause of an increase in violent crime. Theorists claim that violent crime is persistent during the summer due to the heat, further causing people to become aggressive and commit more violent crime.
Violent criminals who use hostile acts towards others include murderers, active shooters, kidnappers, rapists, burglars, muggers and torturers. Another category of violent criminals are pirates and hijackers of cars or aircraft. Criminal organizations, gangsters and drug cartels frequently employ violent criminals in their group, usually as enforcers or hitmen. Violent criminals often display characteristics such as low anger threshold, disinhibition/absence of impulsivity control, strong dominance/territorial instinct, antisocial personality, psychological/mental health issues and aggressive tendencies which enable them to carry out usually violent acts.
The comparison of violent crime statistics between countries is usually problematic, due to the way different countries classify crime. Valid comparisons require that similar offences between jurisdictions be compared. Often this is not possible, because crime statistics aggregate equivalent offences in such different ways that make it difficult or impossible to obtain a valid comparison. Depending on the jurisdiction, violent crimes may include: homicide, murder, assault, manslaughter, sexual assault, rape, robbery, negligence, endangerment, kidnapping (abduction), extortion, and harassment. Different countries such as Australia, Canada, New Zealand, Europe and the United States all have different systems of recording and reporting crimes.
See also: Crime in Australia
The International Crime Victimization Survey (ICVS) is one way Australia analyzes crime. This way is done separately from formal police reporting and gives the citizens of Australia an opportunity to express their experience of crime that otherwise would not have been reported to the police. It is similar to the NCVS which is a survey that the United States does to estimate non-reported crime. The two major categories of the ICVS are personal crime and household crime.
The first annual national survey of crime victimization in Australia, the Crime Victimisation Survey, was conducted in 2008-09. Personal crimes included in the survey are:
One type of sexual offense is Intimate Partner Violence (IPV). Intimate Partner Violence  often stems from other violent tendencies/ behavior such as anger, lack of self-control and/or mental instability. There is a gender gap that is notable when it comes to Intimate Partner Violence. Men are more likely to be guilty of general violence while women are more likely to be guilty of IPV. Lack of self-control in men has a direct correlation on whether they are guilty of IPV or not while anger is more correlated to women on whether they engage in this type of behavior or not. 
Household Crimes that could lead to violent crime are: burglary and attempted burglary. Rates for households crimes were higher than personal crimes and this rate is calculated based on every 100 people per 100 households. 
Australia (as well as New Zealand) classifies crime according to the Australian and New Zealand Standard Offence Classification (ANZSOC). Originally released in 1997 as the Australian Standard Offence Classification (ASOC), it was revised in 2008 and renamed in 2011 to reflect the international use of the standard in both countries and follows agreed policy to harmonises classifications between the Australian Bureau of Statistics (ABS) and Statistics New Zealand. The standard has no single category for violent crime, but its first 6 divisions involve offences committed against the person:
See also: Crime in Canada
Canada conducts an annual measure of crime incidences called the Uniform Crime Reporting Survey (UCR). UCR "Violent Criminal Code" violations include: homicide, attempted murder, sexual assault, assault, robbery, criminal harassment, uttering threats, and other violent violations. Canada also collects information on crime victimization every five years via its General Social Survey on Victimisation (GSS). Among the eight GSS crimes tracked are three violent crimes: sexual assault, robbery, and physical assault.
See also: Crime in New Zealand
Prior to the country adopting the Australian standard for classifying offences (ASOC) in 2010, New Zealand's crime statistics had a category for violence that included homicides, kidnapping, abduction, robbery, assaults, intimidation, threats, and group assembly, while all sexual offences were shown in a separate category from violence. Violent crime is not specifically defined New Zealand legislation, with the Crimes Act 1961 having separate parts that deal with "Crimes against morality and decency, sexual crimes, and crimes against public welfare" and "Crimes against the person" instead. During 2015, New Zealand Police changed the way it counted crime, changing from counting recorded offences to counting people victimised or those found to be offending. The thinking here is that instead of just simply recording the offense, analyzing who exactly is the victim and who exactly is the offender can be more helpful in understanding the nature of the violent crime along with pointing out any trends/patterns. Historic recorded offence statistics from 1994 to 2014 are available from Statistics NZ, while more recent statistic are available from New Zealand Police via policedata.nz. While violent crime is not defined in New Zealand Law, the first 6 divisions of the classification standard do define offences against the person.
Austria, Czech Republic, Finland, Germany, England, Latvia, Netherlands, Portugal, Greece and Sweden count minor violence such as slapping another person as assault. An example is the case of Ilias Kasidiaris in 2012. Kasidaris, then spokesperson for Greece's far-right Golden Dawn party, slapped a left-wing female opponent in the face during a live televised debate. He was subsequently wanted by Greek prosecutors for assault and faced an arrest warrant.[relevance questioned]
France does not count minor violence like slapping somebody as assault.
The United Kingdom includes all violence against the person, sexual offences, as violent crime. Today, violent crimes are considered the most heinous whereas historically, according to Simon Dedo, crimes against property were equally important. Rates of violent crime in the UK are recorded by the British Crime Survey. For the 2010/2011 report on crime in England and Wales, the statistics show that violent crime continues a general downward trend observed over the last few decades as shown in the graph. "The 2010/11 BCS showed overall violence was down 47 per cent on the level seen at its peak in 1995; representing nearly two million fewer violent offences per year." In 2010/11, 31 people per 1,000 interviewed reported being a victim of violent crime in the 12 preceding months. Regarding murder, "increasing levels of homicide (at around 2% to 3% per year) [have been observed] from the 1960s through to the end of the twentieth century". Recently the murder rate has declined, "a fall of 19 per cent in homicides since 2001/02", as measured by The Homicide Index.
See also: Crime in the United States
The U.S. federal government's definition of a "crime of violence" is stated at Title 18 of the United States Code Chapter 1 § 16:
The term “crime of violence” means—
- (a) an offense that has as an element the use, attempted use, or threatened use of physical force against the person or property of another, or
- (b) any other offense that is a felony and that, by its nature, involves a substantial risk that physical force against the person or property of another may be used in the course of committing the offense.
There are two main crime databases maintained by the United States Department of Justice (DOJ): the Bureau of Justice Statistics' National Crime Victimization Survey (NCVS) and the Federal Bureau of Investigation's Uniform Crime Report (UCR). Non-fatal violence is reported in the NCVS, which measures rape and sexual assault, robbery, and aggravated and simple assault reported by households surveyed by the U.S. Census Bureau. The UCR tracks similar non-fatal violence, plus murder and non-negligent manslaughter recorded by law enforcement.
There are significant methodological and definitional differences between the NCVS and UCR:
The NCVS excludes crimes against children under 12 years, persons in institutions, and, possibly, highly mobile populations and the homeless; however, victimizations against these persons may be included in the UCR. Since they use different methodologies and measure overlapping, but not identical, crimes, the data are complementary and not necessarily congruent.: 9
UCR and FBI
In 2019, The FBI's data reports that there were approximately 1,203,808 Violent Crimes that occurred in the United States. Compared to statistics from last year, robbery, rape and burglary offenses saw a decrease in rates while assault and murder saw a slight increase. Per 100,000 people living in the United States, 156 arrests were made that related to violent crime in some capacity. More specifically, for every 100,000 people, 3 arrests were made for murder, 7 for rape, 24 for robbery, and assault was the most common with 120 arrests made for every 100,000 people. 
Bureau of Justice Statistics and NCVS
In 2019, The NCVS data collected consists of 155,076 households across the United States. A notable statistic from this data collection is the rate of violent crime dropping 15% in 2019. Per 1,000 individuals interviewed, 7.3 people were said to be victims of a violent crime which is a decrease compared to 2018 (8.6 per every 1,000 people). Being a victim of a violent crime as it relates to race decreased as well. Black people saw a decrease of 29% while white people saw a decrease of 22%. 
Violent crime in both the UCR and NCVS category have a common variable: alcohol consumption. About 25% of American women have been victims of sexual assault while about 20% of American men have been the ones to commit this sexual assault and other violent behavior, which shows a clear gender gap.  Women are disproportionately more likely to be victims of these categories in the United States. Alcohol is known to impair judgement which results in irrational decisions being made. The UCR rates for forcible rape are so low because women are unlikely to report being a victim of this violent behavior.
In 2011, the UCR violent crime rate had dropped to 386.3 cases per 100,000 persons, compared to 729.6 per 100,000 in 1990.
U.S. homicide data is also available in the National Vital Statistics System (NVSS).
Race and Crime Rates
Racial inequality and socioeconomic status play an infamous role in the violent crime rates shown in the graph above. There is a direct correlation to violence in the poor areas of the United States. Poverty and inequality have a direct impact on violent crime rates across countries, as well as social and environmental factors. In these poor areas, individuals may be forced to take a "survival of the fittest" approach or do not have the necessary means to provide for themselves or family in a legal way, thus violent crime is the only option.