November 16, 2011

Backlash against penal excess hits New Zealand this weekend

When I was in Australia over the summer, giving a keynote at their national forensic psychology conference, I got the distinct impression that Aussie practitioners were a wee bit savvier about criminal justice excesses than the average American.

Now comes evidence that neighboring New Zealanders are equally astute: A joint conference this weekend of Australian and New Zealanders is entitled: Crime and Punishment: The Rising Punitiveness.


The Wellington conference, co-hosted by the Australian and New Zealand Association of Psychiatry, Psychology and Law and the Royal Australian and New Zealand College of Psychiatrists, features intriguing keynotes on:

  • Law and psychiatry, from cooperation to contamination (my favorite title in a great lineup) -- Law and Ethics Professor Nigel Eastman, St George’s University of London
  • New Zealand's three strikes legislation: Sound policy or penal excess -- Law Professor Warren Brookbanks, Auckland University Law School
  • Off with their heads…said the Queen (runner-up for best title) -- Forensic Psychiatry Professor Emeritus Paul Mullen, Monash University
  • While it may not be criminalisation, it is criminal: The plight of people with mental illnesses in the criminal justice system -- Forensic Psychology Professor James Ogloff, Monash University and Director of the Centre for Forensic Behavioural Science and Director of Psychological Services at the Victorian Institute of Forensic Mental Health
  • Contrasts in punishment: An examination of Anglophone excess and Nordic exceptionalism (one I would especially like to hear) -- Criminology Professor John Pratt, Institute of Criminology, Victoria University
  • Reconceptualizing psychopathy to promote effective intervention -- Psychology and Social Behavior Professor Jennifer Skeem, Centers for Psychology and Law and Evidence-based Corrections at the University of California
  • Politics and punitiveness – Limiting the rush to punish -- Kim Workman, retired public servant with the New Zealand Department of Maori Affairs and Ministry of Health
 If you happen to be in or near Wellington this weekend, check it out. I am excited to see this growing backlash against penal excesses, and I sure wish I could be there!

November 11, 2011

Predicting behavior: The case of the missing militant

There is an oft-repeated axiom in our field that the most reliable predictor of future behavior is what a person has done in the past.

But is this axiom valid?

Let's take the example of Ronald Stanley Bridgeforth, featured on America's Most Wanted.

Forty-three years ago, while being detained on suspicion of trying to buy merchandise with a stolen credit card, the 24-year-old Black militant pulled out a revolver and shot at police. He jumped bail and, three years later, became a suspect in the killing of a police sergeant during an armed invasion of a police station in San Francisco.

Would this information lead you to predict that he was likely to engage in more violence in the future?

If so, you would be wrong.

Bridgeforth vanished from the radar screen, and eventually police figured he might have died. But the former community activist was far from dead. After fleeing to Africa, he moved to Ann Arbor, Michigan, married, and raised two sons. Under the assumed name of Cole Jordan, he worked as a janitor, earned a bachelor’s degree from Wayne State University and a master's degree in counseling from Eastern Michigan University, became a licensed professional counselor, and eventually worked his way up to the rank of a full-time faculty member at Washtenaw Community College.

Bridgeforth with attorney Paul Harris (L) and wife Diane (R)
Last week, Bridgeforth finally turned himself in. Authorities were not closing in, but he had a troubled conscience. He plans to plead guilty in the assault case, in which he faces a maximum of five years in prison. Prosecutors announced they will not prosecute him in the infamous murder of Sgt. John Young at San Francisco's Ingleside Station on Aug. 29, 1971. That case unraveled two years ago in part due to allegations (aired in a documentary, Legacy of Torture) that police used torture with electric shock, cattle prods, beatings, sensory deprivation and asphyxiation to obtain confessions from three of the nine suspects.

One might argue that Bridgeforth is an exception to the rule. Only, he's not. Time and again, we hear about a long-time fugitive who lived a quiet life, surrounded by friends and co-workers who had no clue about his or her violent past.

David Gonzales, William Walter Asher III, Katherine Ann Power, Claude Daniel Marks and Donna Jean Willmott, to name just a few.

These cases are testament to the weak validity of the axiom that past behavior is a good predictor of the future. There are several flaws with the theory, among them:
  • The base rate: Most serious crimes have a low base rate of recidivism. That makes us most likely to be correct if we predict that the behavior will NOT reoccur. For example, because of the base rate of rearrest for murder, we would be wrong in the broad majority of cases if we predicted that someone who has killed once will most likely kill again. The same is true for sexual offending. In one recent study, 95 out of 100 people arrested on sex charges had no prior sex crimes; an inordinate focus on the five percent lends an illusion of a higher base rate of reoffending than the evidence warrants.
  • Desistance: A second major problem with static predictions is that people change. In fact, even hard-core criminals almost universally desist from crime as they age. This holds true across all eras and cultures. As scholars Shadd Maruna and Laub and Sampson have shown, crime is mainly a young man's game. As they age, offenders settle down and become less impulsive. Or, they simply burn out.
  • Environmental context: The axiom of past as prelude also ignores the circumstances that contribute to offending. Criminologists have long known about the critical importance of context. For example, peer influence is critical to crime by adolescents and young adults, who have the highest rates of offending. Lifestyle circumstances that can -- and often do -- change over time influence other types of crimes as well, such as robberies and drug offenses. For Bridgeforth and others of the 1960s-1970s era, the context was a militant revolutionary movement that swept up many idealistic young people.
  • Unproven allegations: The Bridgeforth case also highlights the problem of relying on allegations of past misconduct that may not be reliable. Bridgeforth has denied the charge that he was the getaway car driver in the San Francisco police killing, and now prosecutors have chosen not to prosecute him.   

Ultimately, the past-as-prelude axiom may hold better for some behaviors than others. Perhaps it is more reliable when predicting scripted or compulsive acts that a person engages in with high frequency over a lengthy period of time. However, it is less reliable when applied to context-influenced behaviors with low base rates of reoccurrence.

And never should we ignore the influence of aging. Bridgeforth is not the same man at 67 as he was at 24. Think back to your own adolescence or early adulthood; are you the same person now as you were then?

The viewpoint that past is prelude is fundamentally pessimistic, leaving little room to acknowledge that human beings are highly adaptive, and often capable of learning from mistakes and changing our lives.

November 6, 2011

Call for papers on violence risk assessment

The field of violence risk assessment has expanded rapidly over the past several decades. But despite a plethora of new risk assessment tools, confusion abounds as to how to understand their accuracy and utility. And controversy is growing over how well these tools actually predict violence in the individual case.

To address these gaps, forensic scholars John Petrila and Jay Singh of the University of South Florida have teamed up to edit a special issue of the respected journal, Behavioral Sciences and the Law on the topic of "measuring and interpreting the predictive validity of violence risk assessment."

The goal of the special issue is to provide a comprehensive and accessible resource for researchers, clinicians, and policymakers interested in the measurement of predictive validity or the use of such findings in clinical or legal practice.

The editors invite empirical and conceptual papers on the measurement of predictive validity as it relates to violence risk assessment. In addition, papers focusing on the implications of the measurement of predictive validity for public protection and individual liberty are also welcome, as are legal perspectives on these issues.

Papers should be no longer than 35 pages, including tables, figures and references. The deadline for submissions is July 1, 2012. Authors should send two electronic copies of any submission, one blinded for peer review, to John Petrila, JD or Jay P. Singh, PhD.

November 1, 2011

Salon covers Halloween hype

As it turns out, I didn't need to write my annual column on Halloween this year, because Tracy Clark-Flory over at Salon.com did it for me -- even quoting my blog musings on the topic:
Year after year, new measures are introduced to keep registered sex offenders of all stripes from coming into contact with trick-or-treaters -- and yet there is zero evidence to support the legislative trend.... It isn't just law enforcement that is joining in the Halloween paranoia: Tech entrepreneurs are hyping new smartphone apps -- including a brand-new one for Facebook -- as tools to steer kids clear of sex offenders’ homes and even allow parents to track their kids by GPS, instead of actually accompanying them in person....

Karen Franklin, a forensic psychologist who has long railed against the Halloween crackdown, calls it "security theater" and "the Halloween boogeyman."* She says "the scare feeds into a deep-rooted cultural fear of the boogeyman stranger."Just as with scary movies, this holiday allows us the thrill of confronting our fears in a controlled manner. Similarly, the inevitable spate of stories about stranger danger each October both exploit and assuage parental nightmares. Canny entrepreneurs sell parents ways to protect their kids from "real monsters" -- as though safety and control were but an app away -- while local politicians and sheriff’s departments circulate press releases to celebrate their own valiant efforts fighting ... a problem that does not appear to exist.

Most interesting of all to me were the comments on Ms. Clark-Flory's column, which were universally critical of the overblown hype surrounding sex offenders, and also raised the issue of civil rights and the infringement of civil liberties.

By the way, credit for the term "security theater" goes to Bruce Schneier, who writes and blogs about security. Schneier defines security theater as "security measures that make people feel more secure without doing anything to actually improve their security." Prominent examples include airport screenings and increasingly ubiquitous metal detectors. Thanks to Dave S. for alerting me to Schneier's interesting blog.

** I actually spell it "bogeyman," but opinion on the correct spelling is not unanimous.

October 31, 2011

Happy Halloween!

For the past four years on this date, I have posted a column on Halloween and the sex offender bogeyman. I'm going to skip it this year, but you can check out my previous offerings by clicking on these links:
View from my walking path of San Francisco Bay and Golden Gate Bridge
By the way, there is an actual crime spike on Halloween; it's just not of a sexual variety. You may also be interested in an article at The Psychologist on "The Lure of Horror."

Collating these Halloween posts reminds me that I’ve been blogging for almost five years now. It's hard for me to believe this will be my 735th post! My increasingly large and diverse international subscriber base makes quitting unthinkable. But occasionally blogging must take a back seat to other things, including my forensic work, academic writing, non-professional activities, and even simply enjoying our glorious October weather (so much nicer than the record-breaking snow storm that just struck the East Coast!).

I did manage to find time to view and review three indie films, a diversion from the increasingly mindless Hollywood fare that is so hard to stomach. You can click on any of these links to read the full review. In order from most to least recommended, they are:
  • Salt of This Sea (a Palestinian film I highly recommend)
  • Incendies (a critically acclaimed film about the Lebanese conflict, which is worth seeing if you are into horror)
  • Ballast (a film set in the Mississippi Delta that doesn’t live up to the hype)
When I don't get around to blogging, I often still find time to tweet forensic news, a much shorter and simpler task. Click on any of the below links to go to some of the interesting news articles I've tweeted about in the past couple of weeks (you can view my tweets in real-time at any time, on the upper-right side of my blog site):
In closing, whatever you are up to today, I wish you a very happy Halloween. No tricks, just treats.

October 30, 2011

Study: Psychopathy score fails to predict sexual recidivism

Many forensic psychologists believe that psychopathy is a risk factor for sex offender recidivism. Not surprisingly, when forensic psychologists assign a sex offender a high score on a psychopathy test, it increases the risk of extreme legal sanctions such as civil commitment.

But a new study out of Texas found zero correlation between sexual recidivism and psychopathy, as measured by the widely used Psychopathy Checklist (PCL-R). If anything, sex offenders who were arrested for a new sexually violent offense tended to have lower scores on the PCL-R than those who were not rearrested!

Regular blog readers should be familiar with these researchers by now: Dan Murrie, Marcus Boccaccini and crew are the same scholars who informed us of the partisan allegiance phenomenon, in which evaluators working for the government tend to assign far higher PCL-R scores than do those working for the defense.

In their most recent study, they examined PCL-R scores from about 400 sex offenders in Texas who were released from prison and then tracked for anywhere from about two to seven years. They examined not just the total scores on the PCL-R, but also scores on the instrument's two factors, as well as four so-called facet scores. Not one of these seven PCL-R variables was a statistically significant predictor of whether a man would be arrested for a new sex crime.

“Overall, these predictive validity findings were striking because the PCL-R apparently failed to predict the type of outcome (i.e., sexually violent reoffense) for which it was administered in this context,” the authors noted.

Further, in cases in which the PCL-R was administered by more than one evaluator, the study found poor agreement between the two, even though both were working for the government. Consistent with prior research, interrater agreement was higher on Factor 2, which measures antisocial behavior and an impulsive lifestyle, than on Factor 1, which measures the vaguely operationalized personality and emotional dynamics thought to underlie psychopathy.

In an interesting twist, the researchers tried to determine whether some evaluators were more accurate than others at predicting recidivism through PCL-R scores. They identified four highly prolific evaluators; together, these three psychologists and one medical doctor had provided almost two-thirds of the PCL-R scores in the study. Although the PCL-R scores of three of these four evaluators were more likely than other evaluators' scores to correlate with a new arrest for a non-sexual crime, even these evaluators could not produce PCL-R scores that predicted sexual offense recidivism.

Despite the PCL-R’s lack of predictive validity, sex offenders with higher PCL-R scores were more likely than others to be recommended for civil commitment, indicating that the unreliable rating was far from harmless in forensic practice.

The study is: 

Murrie, D. C., Boccaccini, M. T., Caperton, J. and Rufino, K. Field Validity of the Psychopathy Checklist–Revised in Sex Offender Risk Assessment. Psychological Assessment. Click HERE to request a copy from the first author, at the Institute of Law, Psychiatry, and Public Policy.

Of related interest: