Criminal recidivism in sexual homicide perpetrators

Forensic psychiatric reports on 166 sexual homicide perpetrators in Germany were retrospectively analyzed for criminal risk factors. Follow-up information about release and reconvictions from federal criminal records was available for 139 offenders; 90 (64.7%) had been released. The estimated recidivism rate (Kaplan-Meier analyses) for 20 years at risk was 23.1% for sexual and 18.3% for nonsexual violent reoffences. Three men (3.3%) were reconvicted for attempted or completed homicide. Only young age at the time of sexual homicide resulted in higher sexual recidivism, whereas increased nonsexual violent recidivism was related to previous sexual and nonsexual delinquency, psychopathic symptoms, and higher scores in risk assessment instruments. Increased recidivism with any violent reoffence was associated with age-related factors: young age at first sexual offence, at homicide, and at release and duration of detention. The impacts of the results for risk assessment, relapse prevention, and supervision are discussed.     

Psychopathology and weapon choice: a study of 103 perpetrators of homicide or attempted homicide

Bone marrow (BM) analysis is of forensic interest in postmortem toxicological investigation in case of limited, unavailable or unusable blood samples. However, it remains difficult to determine whether a drug BM concentration is therapeutic or represents overdose, due to the lack of studies on this alternative matrix. Given the variations in BM composition in the body, sample location was suggested to be a relevant factor in assessing BM concentration. The aim of the present study was to compare postmortem caffeine concentrations in various BM sample locations and secondly to consider the correlation between BM and blood concentrations. Six BM samples (right and left side: proximal and medial femur and 5th rib) and a blood sample were collected from 21 forensic autopsies. Gas chromatography coupled to tandem mass spectrometry was performed. Blood caffeine concentrations ranged from 60 to 7591ng/mL. Femoral and rib BM concentrations ranged from 51 to 6171ng/g and 66 to 7280ng/g, respectively. Blood concentrations were always higher than BM concentrations. As a good correlation was demonstrated between blood and rib BM and between blood and the average of the four femoral BM concentrations, blood caffeine concentrations could be correctly extrapolated from BM concentrations. BM caffeine concentration was found to depend on sample location. Rib BM caffeine concentrations appeared to be systematically greater than averaged femur values and concentrations were much more variable between the 4 femur BM samples than between the 2 ribs. From a practical point of view, for caffeine analysis, rib BM appeared more relevant than femoral BM, which requires multisampling to overcome the concentration variability problem.     

105例凶杀案责任能力评定分析

目的探讨鉴定医生评定凶杀案例责任能力时的主要依据及影响因素。方法对总计105例凶杀案的精神病司法鉴定案例进行回顾性分析。结果无责任能力者41例(39.0%);限定责任能力者28例(26.7%);完全责任能力者36例(34.3%);与刑事责任能力的评定密切相关的因素有:凶杀行为是否由精神病理因素引起(Gamma=0.906,P=0.000),临床诊断是否为重性精神病(Gamma=0.761,P=0.000),被害人是否为家人亲属(Gamma=0.412,P=0.000)。结论从技术层面看,鉴定医生评价责任能力考虑的三个主要方面按重要性依次是:凶杀行为是否由精神病理因素引起,被鉴定人是否患有重性精神病,被害对象是否为家人亲属。     

Extent, trends, and perpetrators of prostitution-related homicide in the United States

Prostitute women have the highest homicide victimization rate of any set of women ever studied. We analyzed nine diverse homicide data sets to examine the extent, trends, and perpetrators of prostitution-related homicide in the United States. Most data sources substantially under-ascertained prostitute homicides. As estimated from a conservative capture-recapture analysis, 2.7% of female homicide victims in the United States between 1982 and 2000 were prostitutes. Frequencies of recorded prostitute and client homicides increased substantially in the late 1980s and early 1990s; nearly all of the few observed pimp homicides occurred before the late 1980s. These trends may be linked to the rise of crack cocaine use. Prostitutes were killed primarily by clients, clients were killed mainly by prostitutes, and pimps were killed predominantly by pimps. Another conservative estimate suggests that serial killers accounted for 35% of prostitute homicides. Proactive surveillance of, and evidence collection from, clients and prostitutes might enhance the investigation of prostitution-related homicide.     

Immunohistochemical analysis of forensic evidence from a double homicide

We report the use of immunohistochemical staining for analysis of forensic evidence from a double homicide. A 38-year-old woman and her 7-year-old daughter were murdered by multiple blows to the head and face with a tomahawk, resulting in multiple fragments of brain tissue scattered about the murder scene. The victims' husband and father was the main suspect, who maintained that he was out of town on business during the evening of the murders. However, a shirt taken from the suspect's car on the morning after the murders (secured by the police before the suspect visited the murder scene) was found to have two small stains. DNA analysis on the stains showed the presence of the deceased wife's DNA, and immunohistochemical stains on shirt fragments conclusively documented the presence of deep central nervous system tissue, providing the critical piece of evidence needed to arrest and prosecute the suspect. This report demonstrates that shirt or similar cloth fragments can be processed into paraffin blocks and subsequently immunostained to search for and classify types of tissue fragments that may be present on the fabric.     

Relationships between legal and clinical factors among forensic hospital patients

Recognizing that established relationships enhance understanding and therefore improve clinical intuition and inference, the authors examined clinical and legal characteristics of a legally and clinically heterogeneous population of maximum security forensic hospital patients (n = 380). Several findings serve to substantiate outcomes of previous studies of subgroups of offenders. Some new relationships among legal and clinical variables are established. The relationship between admission legal status and Axis I diagnosis is dependent upon the Axis II diagnosis. Those admitted for competency evaluations have the lowest percentage of psychotic diagnoses and the highest IQ. Kidnapers have the highest percentage of psychotic diagnoses and there is a relationship between previous incarceration and drug treatment refusal. The authors discuss clinical implications, generalizability, and the needs for further investigation.     

Sharp force injuries in clinical forensic medicine--findings in victims and perpetrators

The injury findings in 58 perpetrators and 158 victims surviving bodily injuries due to sharp force are presented here. Defence injuries were found in 45.9% of the victims without any significant differences between males and females. There was no clear predominance of defence injuries on the left forearm and hand, as is known from autopsy studies; the right and the left hands were affected with an almost identical frequency. Regarding other parts of the victims' bodies, the topographic distribution of injuries showed a marked concentration on the left side (63.7%). The thorax, head and neck were frequently affected (45.9%, 15.3% and 15.3%, respectively), and less often the abdomen (11.1%), the lumbar and gluteal region (6.3%) and the lower extremities (6.1%). In surviving victims with only one singular stab apart from the upper limbs, the incidence of additional defence injuries on the hands and/or forearms was significantly higher (28.3%) than in fatalities. When the perpetrators had unintentionally cut their own hands, the frequency of these injuries on the right and left hands was almost equal.     

Characteristics of female patients admitted to an adolescent secure forensic psychiatric hospital

Bluebird House is the only mixed gender NHS secure forensic psychiatric hospital for adolescents in the South of England. It has admitted more than 30 female patients since the service opened in 2008. The admission criteria are that patients must be detained under the Mental Health Act and present evidence of being a risk of harm to others. This article describes the clinical characteristics of 30 consecutive female patients admitted to a highly specialised adolescent forensic inpatient service. Key results include a very high rate of incidents of risk behaviours exhibited by female patients within the unit but good clinical outcomes. The majority of patients had severe symptoms of mental disorder, especially emotional instability, self-harm behaviours and aggressive behaviours. Few had diagnoses of mental illness. Assessment findings from the Millon Adolescent Clinical Inventory and the Structured Assessment of Violence Risk are discussed, as are parallel with studies from other female secure services.     

Characteristics of male patients admitted to an adolescent secure forensic psychiatric hospital

This paper examines the characteristics of a group of 64 young men, who were consecutively admitted to Bluebird House, an NHS mixed gender, adolescent forensic, medium secure hospital. The characteristics examined focus on the young men’s clinical presentations, as informed by the Millon Adolescent Clinical Inventory, and their ICD10 (WHO 1992) diagnoses. The paper also examines the males’ route into, and out of, Bluebird House, as well as their risk profiles, especially with regards to others, as informed by Structured Assessment of Violence Risk in Youth findings and staff recorded incidents. Correlational analysis is performed to try and understand this population, with statistically significant findings highlighted. The discussion considers the trajectory for some of these young men into adult personality disorders, their presentation and prognosis compared to their female counterparts, and how their presentation contrasts with adult male forensic populations.     

The influence of forensic evidence on the case outcomes of homicide incidents

Objective

In spite of the growth of forensic science services little published research exists related to the impact of forensic evidence on criminal case outcomes. The present study focused on the influence of forensic evidence on the case processing of homicide incidents.

Materials and Methods

The study utilized a prospective analysis of official record data that followed homicide cases in five jurisdictions from the time of police incident report to final criminal disposition.

Results

The results showed that most homicides went unsolved (34.5% conviction rate). Only 55.5% of the 400 homicide incidents resulted in arrest of which 77% were referred to the district attorney. On the other hand, 94% of cases referred to the district attorney were charged. Cases were more likely to have arrests, referrals, and charges when witnesses provided information to the police. Suspects who knew their victims were more likely to be arrested and referred to the district attorney. Homicides committed with firearms were less likely to be cleared. The most noteworthy finding was that none of the forensic evidence variables significantly influenced criminal justice outcomes.

Conclusions

The study results suggest that forensic evidence is auxiliary and non-determinative for homicide cases.     

Sexual coercion among adolescents: victims and perpetrators

Adolescence is a transitional period when the pressure to engage in romantic and sexual relationships can leave teenagers feeling confused and at risk for sexual coercion. Our studies investigated characteristics of male and female perpetrators and victims of peer sexual coercion, focusing on self-esteem, sexist attitudes, and involvement in nonsexual deviant behaviors, such as drugs and alcohol. The participants, all of whom were in Grades 8 to 11, were from Quebec, Canada. They completed self-report measures. Female victims had lower self-esteem and more sexist attitudes than other female participants, whereas male perpetrators had more sexist attitudes than other male participants. Furthermore, all victims and perpetrators were more likely to be involved in other types of nonsexual deviance.     

Characteristics of adolescent incest sexual perpetrators: Preliminary findings

Adolescent incest sexual perpetrators seen at an out-patient clinic were interviewed regarding demographic characteristics and occurrence of deviant and nondeviant sexual behaviors. Results indicate that subjects (1) committed more sexual crimes than they had been arrested for, (2) reported a very early onset of sexual behavior, (3) had additional DSM-III psychiatric disorders, and (4) reported previous sexual victimization. Recommendations for future research are made.     

Characteristics of parents of adolescent incest perpetrators: Preliminary findings

Twenty-seven parents of adolescent incest perpetrators were interviewed regarding demographic characteristics, prior victimization and abuse, and attitudes about their sons engaging in incestuous behavior. Results indicated that these parents: (a) under-reported physical and sexual abuse of their sons, (b) had a high incidence of being abused themselves, and (c) demonstrate a high level of denial regarding their sons' incestuous behaviors as reflected by the finding that only 50% of the parents totally admitted to their son's incestuous behavior(s).     

PCL-R psychopathy predicts disruptive behavior among male offenders in a Dutch forensic psychiatric hospital

In this study, the relationship between psychopathy, according to the Dutch language version of Hare's Psychopathy Checklist-Revised (PCL-R), and various types of disruptive behavior during inpatient forensic psychiatric treatment is investigated. Ninety-two male participants were administered the PCL-R following admission to an inpatient forensic hospital. From daily hospital information bulletins, incidents of verbal abuse, verbal threat, physical violence, and violation of hospital rules were derived. Also, the number of seclusion episodes was recorded. As expected, significant correlations were found between PCL-R scores and verbal abuse, verbal threat, violation of rules, total number of incidents, and frequency of seclusion. Psychopaths (PCL-R > or = 30) were significantly more often involved in incidents than nonpsychopaths. Multiple regression analyses revealed that the PCL-R Factor 2 score in particular contributed uniquely to the prediction of the total number of incidents. The findings are discussed in terms of their clinical implications.     

Extent and characteristics of woman batterers among federal inmates

Efforts to identify men who batter women in clinical settings have increased in recent years, but batterer research in United States federal prisons is lacking; low security federal prisons are logical places to consider batterer screening and treatment given the number of men, the domestic violence "risk markers" associated with these men and the likelihood they will be released and return to female partners. This study examined intake assessment data for 115 low security federal inmates. The inmates evidenced high levels of risk markers for woman battering, one in three (33%) acknowledged recent physical violence against women partners, 1 in 10 (13%) admitted severe violence, and the self-identified batterers showed more substance use and personality problems than other inmates. The findings suggest that batterer screening and treatment may be needed in federal prisons and that more research is warranted with a burgeoning male population that ultimately returns to society.     

Characteristics and personality profiles of first 100 patients admitted to a secure forensic adolescent hospital

Bluebird House is a mixed-gender adolescent medium-secure forensic unit. There is a paucity of data available about this unique patient group. We aimed to explore the demographic, clinical and personality characteristics of the first 100 patients admitted to a mixed-gender adolescent medium-secure forensic unit. We used a retrospective cross-sectional study of the first 100 consecutive patients admitted to Bluebird House. Demographic and clinical data were collected from the medical notes including the Millon Adolescent Clinical Inventory. The first 100 young people admitted to an adolescent medium-secure unit have had very high incident rates, particularly amongst the females. Incident rate was correlated with a history of sexual assault in female patients. The males were more likely to have been referred from custody and more likely to have a diagnosis of psychosis or autism. We describe similarities and differences to the first 100 admissions admitted to the first secure psychiatric unit for adolescents in Manchester over 20 years ago.     

Risk of homicidal behaviour among persons convicted of homicide

We studied the risk of homicidal behaviour among persons convicted of homicide using an epidemiological method. The results showed that male homicide offenders are at least 10 times more likely to commit a homicide when compared with general male population. This odds ratio was about 150-fold among offenders who had committed at least four previous aggravated violent crimes as well as homicide.     

Sense-making and secondary victimization among unsolved homicide co-victims

Sense-making is a form of meaning-making that focuses on understanding loss which then contributes to identity reconstruction. This qualitative study examines how perceived communication with the criminal justice system can inhibit sense-making among unsolved homicide co-victims. One-time intensive interviews were conducted with 37 co-victims about their interactions with police and prosecutors. A grounded theory approach suggest that co-victims held negative views of the police and prosecutors because they perceived them as inhibiting their ability to adequately locate information needed to understand the crime and achieve justice. Results also suggest that race and ethnicity play a role in reducing sense-making because constructions of meaning were based on perceptions of discrimination. In the end, the intense desire for information, resolution, and justice led several co-victims to investigate their loved one's murder. Policies that law enforcement should adopt to promote better communication with co-victims and facilitate sense-making are examined.     

A study of amnesia in homicide cases and forensic psychiatric experts' examination of such claims

About one third of defendants in homicide cases claim amnesia during the time of their alleged act. Examining the authenticity of claimed amnesia is a special challenge for forensic experts. Because the experts' conclusions have legal implications, it is useful to study the characteristics of defendants who claim amnesia regarding a homicidal act and how forensic experts assess these defendants' claims. The forensic psychiatric reports from 2001 to 2007 on 102 Norwegian defendants charged with homicide were assessed quantitatively with a structured rating form. Due to multiple comparisons p of .003 was chosen. Twenty-six defendants claimed partial and 17 claimed total amnesia. No significant differences in the characteristics of the defendants were found between the partial, total, and no amnesia claiming groups. Claims of partial or total amnesia did not change the procedures and content of the forensic experts' examination. A memory test was applied in only one case. Despite the seriousness of the crime and the difficulty of assessing amnesia, the experts did not apply psychological testing of memory function or appropriate tests of possible malingering. Guidelines or standardized procedures for evaluation of defendants who claim amnesia should be developed. This could eventually contribute to more reliable and valid evaluations by forensic experts and increase the probability of just court outcomes.