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Crime patterns and trends

The victim of crime trend

Posted by James Alan Fox, Crime and Punishment October 18, 2012 11:45 AM

"Violent crimes jump unexpectedly," read the headline of a Page 2 news brief in today’s Boston Globe. The attention-grabber sounds as scary as it is wrong -- wrong on two counts. Not only is it rather misleading to call the latest trend in violent crime victimization a jump, but the increase that did occur was hardly surprising.

The following chart showing the rate of violent crime over the past two decades based on the annual survey of tens of thousands of households nationwide places the statistical report in the proper context. Sure, violent crime was up in 2011 over 2010, but it remained lower than every other year since the early 1990s. The rate of violent crime victimization in 2011 was actually the second best in recent history; but with 2010 being the best, the one year trend from 2010 to 2011 appeared worrisome – an 18 percent surge in violent crime.


Crime is down -- or is it?

Posted by James Alan Fox, Crime and Punishment June 11, 2012 02:15 PM

There is good news on the national crime front...or so it seems at first glance.

As is usual practice, the FBI released today its preliminary tabulations of crime statistics for 2011, and the short-term trend seems rather encouraging. Although the final figures will not be available until the Fall, the incidence of serious violent and property crime continues its downward slide.

According to the FBI analysis (see figure below), violent crime was down 6.4% in 2011 over 2010, including a 1.9% decline in murder. The homicide drop would mean that nearly 280 fewer Americans were murdered last year as compared to the year before. A homicide death toll of about 14,500 would be the lowest since Richard Nixon was elected President of the United States.

As for property crime, the figures are not nearly as rosy, showing a drop of less than 1 percent for the year. But, of course, that could be considered quite an achievement given the troubled economy, not to mention consequent budget cuts for crime prevention and crime control.


While I hate to be a killjoy, but there is much more a mixed bag in terms of what these trends really indicate. Year-to-year changes are notoriously volatile, especially for lesser volume crimes like murder. They must be viewed with caution, avoiding the temptation to make too much out of rather little.


The Halloween Crime Spike

Posted by James Alan Fox, Crime and Punishment October 29, 2011 08:00 AM

I noted last July, just following Boston’s stunning Independence Day surge in homicide, that certain days during the year tend to produce crime spikes. Violence frequently erupts by virtue of the usual activities (e.g., drinking, carousing, and partying with friends) that are associated with particular legal holidays and other unofficial occasions for diversion.

As shown in the chart below, the aggregate number of serious violent crimes (homicide, forcible rape, robbery and aggravated assault) in Boston for 2006 through 2009 spiked significantly upward on three specific dates--January 1, July 4 and October 31.


When disgruntled customers kill

Posted by James Alan Fox, Crime and Punishment August 26, 2011 05:00 PM

The latest report from the Bureau of Labor Statistics appears to have good news with regard to the safety and well-being of American workers. According to preliminary tabulations of occupational fatalities for 2010 (see below), homicides in the workplace declined almost 7% over 2009, continuing a long-term downward trend that began nearly two decades ago. In fact, the 506 workplace homicides for 2010 is the lowest count since these statistics have been collected.

Workplace homicides typically involve robbery -- predominately robberies of convenience stores and taxi drivers for quick cash and quick getaway. These types of episodes have indeed declined substantially in recent years, paralleling the general decline in the overall U.S. homicide rate.

The aggregate figures, although encouraging, obscure a troubling fact: Certain forms of workplace homicide -- fatal assaults by co-workers and especially by customers -- continue to buck the overall downward trend (see below).


Boston's Violent Fourth -- A recurring pattern

Posted by James Alan Fox, Crime and Punishment July 7, 2011 11:00 PM

From City Hall to Grove Hall have come expressions of outrage over the violent crime spree that spoiled the Fourth of July for residents in Roxbury, Dorchester and Mattapan, especially the families of the four men who died from gunfire.

Although the anger, frustration and shock are absolutely justified and understandable, we should not be overly surprised by the Independence Day bloodshed. Hot weather, a day without the structure of work or school, and, of course, alcohol provide a dangerous mix, resulting in a spike in crime seen time and time again.


Abortion and crime - A missing link

Posted by James Alan Fox, Crime and Punishment June 2, 2011 01:00 PM

According to a recent New York Times headline, ("Steady Decline in Major Crime Baffles Experts," May 26, 2011), we criminologists are clueless when it comes to explaining the drop in serious crime. To the contrary, a range of plausible explanations have been advanced to account for the downturn in lawlessness that this nation has enjoyed since the early 1990s. Over the long-term, the welcomed trend can be linked to several factors:

  • the calmer aftermath of the late-1980s crack epidemic that had caused city crime levels to spike until the drug market shifted;
  • improved police strategies that rely heavily on innovative technology and sophisticated crime analysis tools;
  • expanded use of incarceration along with longer sentences that have kept more criminals off the streets; and
  • the graying of America whereby the fastest growing segment of the population are the aging "baby-boomers" who are now over 50 years old and hardly babies anymore.

Reading beyond the headline of the Times story, however, what "baffled" me and other criminologists was the short-term plunge in crime from the first half of 2009 to the first half of 2010, especially the 6.2% drop in violent crime that included a 7.1% dip in murder. There is nothing even close to definitive that can account for such a large reduction over such a limited time period (other than the natural fluctuations inherent of short-term trends).

In the days since the Times article appeared, I have been treated to a large volume of e-mails from folks offering various suggestions concerning the cause—everything from the impact of a meeting some five years ago of a large group of transcendental meditators who used their special skills to bring about peace, to an increased community cohesion as the recession prevented countless Americans from moving residences.

More than a few of the e-mailers, however, were riders on the abortion-crime link bandwagon. A spirited debate among economists was ignited a decade ago when John Donohue of Yale and Steven Levitt of the University of Chicago concluded that legalized abortion had produced a drop in crime. These prominent scholars argued that following the 1973 decision in Roe v. Wade, thousands of unwanted fetuses were aborted instead of being born into less-than-ideal environments, thereby producing two decades later a reduction in the pool of at-risk, violence-prone individuals.


Fewer mothers killing kids

Posted by James Alan Fox, Crime and Punishment May 23, 2011 08:00 AM

At least based on comments uploaded to my "Why mothers kill" blog post of last week, there appears to be some disagreement about whether mothers or fathers are more apt to commit infanticide. The opposing positions are supported by conflicting research reports that use different data sources and different time frames.

There are logical reasons to back either point of view. One might think that fathers are more inclined to kill their children in light of the very uneven gender split generally among those who commit homicide. Overall, 90% of murderers in this country are male.

On the other hand, mothers tend to have much greater contact with their children, increasing the opportunities for violent outbursts directed against their sons or daughters. To whatever extent infanticide is precipitated by the stresses and strains of child rearing, one might expect mothers to outnumber fathers as perpetrators of infanticide.


Why killers target prostitutes

Posted by James Alan Fox, Crime and Punishment April 15, 2011 12:00 PM

For the families of the eight women or more who were apparently murdered and dumped on Long Island, NY, by a serial killer, it must be some small consolation that the case is finally receiving wide-ranging media attention. The victims, all believed to have worked as prostitutes, disappeared months or even years ago. But only after the remains of four bodies were discovered in December and an additional four more recently did word of a likely serial killer become a page one story.

This is a familiar scenario to those, like me, who pay attention to such crimes. Serial murders of prostitutes have been tracked in virtually every part of the nation, with many of the cases unsolved and frustratingly cold.

For a number of reasons, prostitutes are the most frequent victims targeted by serial murderers. Foremost is their easy accessibility to these predators. A sexual sadist can hunt the streets of the city or browse the ads on Craigslist, seeking out an available woman (and sometimes the man), looking selectively for the one who he finds most appealing, the one who can best satisfy his violent fantasies. And for money or drugs, the unfortunate prostitute will willingly participate in making his dream a reality, until it becomes too late to escape.

From the killer's perspective, it is also psychologically easier to prey upon those he devalues. Seeing them as "sex machines," programmed to please, he feels little hesitancy or remorse. By dehumanizing his victims, he is killing someone that he views as beneath humanity.

Most important, however, is that the killer who victimizes prostitutes can count on a slow response from law enforcement and minimal attention from the general public. Were he to abduct and kill some middle-class co-ed, the police response would be intense and immediate. But the disappearance of a known prostitute is not necessarily considered foul play, at least not until the remains of several victims are discovered in a remote dump site.


Parole failure and bad pitching

Posted by James Alan Fox, Crime and Punishment February 21, 2011 08:30 AM

There are times when online editions of newspapers deny readers the curious juxtapositions of stories found in print, unintended though they may be, that occasionally identify fascinating ironies in politics, current events or the social world. For example, an article about on sex education in schools may inadvertently be placed side-by-side with one about the struggles of some single mother somewhere. Or, a photograph of a public servant charged with taking bribes may be coincidentally situated above a story about a newly-discover Ponzi scheme.

In yesterday’s Sunday Globe, the print edition that is, a skillful and lengthy examination of efforts over the years to improve parole prediction tools culminates on page K4 of the Ideas section, just above a small snippet about the limitations on using minor league pitching performance to predict major league success on the mound. In both settings—predicting future criminality and future earned-run-averages—the past is a useful, but rather flawed, indicator of the future.

The most challenging problem in either case is the inherent difficulty in predicting rare events. It is a statistical fact of life that unusual or extreme outcomes can never be reliably anticipated, no matter how sophisticated the prediction device or how voluminous the data used to craft it.


Hate crime figures - Truly unbelievable

Posted by James Alan Fox, Crime and Punishment December 13, 2010 12:00 PM

Maria Cramer’s examination of the implausibly low hate crime figures for Massachusetts communities highlights a pervasive and systematic problem in measuring acts of violence and vandalism motivated by bias and intolerance related to race, ethnicity, religion, gender, sexual orientation or disability. However, the troubling portrayal of undercounting reflects only half the story. The reporting problems in Massachusetts may be bad, but they are far worse elsewhere.

Cramer focused almost exclusively on differences in hate crime reporting among cities and towns in the Commonwealth of Massachusetts. Yet, even with the apparent lack of compliance among many jurisdictions statewide, Massachusetts still ranks high among the states around the country -- 9th highest nationally in terms of reported hate crimes per 100,000 population. In 2009, the rate for Massachusetts (5.05) was more than twice the national average (2.37). This, of course, begs the question: how badly would our state rank if the reporting levels were more consistent with reality?

Ever since the awful days of violence and disorder prompted by forced busing in order to desegregate city schools, Boston has struggled to shed its ugly reputation for racism. And, although our state has been singularly progressive in recognizing same-sex marriage, the potential for backlash always exists when breaking down barriers.

Before jumping to conclusions, consider where some other states rank nationally. The three states that sit at the very bottom, with the lowest reported rates of hate crime, are Georgia, Mississippi, and Alabama! This fact alone suggests that the FBI’s hate crime report, mandated by Congressional act in 1990, may not worth the cyberspace in which it resides.

Comparing the official police reports to estimates from victim surveys further illustrates how unreliable hate crime measurement can be. According to the Bureau of Justice Statistics, almost 200,000 Americans are victimized annually by hate crimes, of which nearly half are reported to the police. Yet, according to the FBI, the number of incidents submitted by law enforcement around the country is less than 10,000 annually. Although the victimization counts are likely inflated (as some victims may falsely impute bias motivation), the FBI hate crime reports are clearly suspect. At best, they may be used to track trends for a particular jurisdiction; but even then, changes in investigative practices can significantly alter the figures.


About the author

James Alan Fox is the Lipman Family Professor of Criminology, Law, and Public Policy at Northeastern University. He has written 18 books, including his newest, "Violence and Security on Campus: From Preschool through College." More »

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