Case studies in forensic soil examinations

The examination and comparison of forensic soil samples is discussed. The origin of a simple and easy to learn procedure used and modified by the authors is reviewed. The process begins with a preliminary observation, removal of artifacts, and sieving of each specimen. A specific size fraction is split into three fractions for color matching, polarized light microscopy (PLM) examination (particle counting) and optional gradient comparison. Next, several cases are reviewed in which the modified method was used to evaluate the likelihood of common origin for questioned and known specimens.     

The precarious practice of forensic psychiatric risk assessments

The development of forensic psychiatric risk assessments is discussed from a clinical point of view using the example of Sweden. A central task in forensic psychiatry has traditionally been to identify dangerous, mentally disordered subjects considered to be prone to commit violent acts. Over time, “dangerousness” has been reworded into “risk”. Nevertheless, such assessments have generally been based on the psychiatric factors characterising the individual patient, while group interaction, situational factors, or social and cultural circumstances, such as the availability of alcohol and drugs, have been largely overlooked. That risk assessments have a focused on people with a diagnosis of “mental disorder” and been used as grounds for coercive measures and integrity violations has somehow been accepted as a matter of course in the public and political debate. Even the basic question whether offenders with a mental disorder are really more prone to criminal recidivism than other offenders seems to have been treated light-handedly and dealt with merely by epidemiological comparisons between groups of persons with broad ranges of psychosocial vulnerability and the general population. Legal texts, instructions and guidelines from the authorities in charge are often vague and general, while actors in the judicial system seem to put their trust in psychiatric opinions. The exchange of professional opinions, general public expectations, and judicial decision processes poses a huge risk for misunderstandings based on divergent expectations and uses of terminology.     

FrostWire P2P forensic examinations

FrostWire is a peer-to-peer (P2P) application derived from the open source code of Limewire. Frostwire was first released in February of 2005 as a Gnutella P2P client. As interest in the Gnutella network waned, FrostWire switched in later versions to becoming a torrent client. Since the United States government shut Limewire down, FrostWire has become more popular and is seen more often in criminal investigations. This paper describes the different components of FrostWire and the useful information which can be obtained in a digital forensic examination.     

The impact of forced forensic psychiatric confinement on composition and structure in the personal networks of personality-disordered forensic psychiatric patients

This study explored to what extent the composition and structure of personal networks of personality-disordered forensic psychiatric patients changed before and after forced confinement in a forensic psychiatric centre. Semi-structured in-depth interviews with 36 patients and selected members of their networks were examined. During forensic psychiatric treatment, patients reported a decrease in network size, in the number of high-risk network members, and in the number of social ties between these high-risk network members. Personal relationships were of shorter duration, with lower levels of contact frequency and reciprocity. No changes were observed in the patients’ companionship, practical and emotional support networks. During forensic psychiatric treatment, patients reported some new relationships, especially with persons outside the forensic psychiatric centre. Information on compositional and structural personal network factors over time helps forensic mental health professionals to properly assess and manage the important dynamic social network conditions associated with recidivism.     

Sexual assault examinations and forensic medical samples

Recent studies and a review in the United States have identified that tens of thousands of used but untested sexual assault examination kits containing medical examination specimens are to be found in police station evidence rooms, forensic science laboratories, hospitals and rape crisis centres. A 2007 survey undertaken by the National Institute of Justice in the United States explored some of the reasons why forensic specimens are not tested by forensic science laboratories. Many of these relate to lack of knowledge on the part of investigators as to how scientific information can assist the investigation process, even if not used subsequently at trial. Cost factors and laboratory casework overload were also identified as significant. For the medical practitioner, the lack of testing poses issues that include quality management of the forensic medical examination and informed consent in a setting requiring the balancing of public and private benefits for the examinee. Limiting scientific testing, even with intelligence-led triaging of sample testing, could have an adverse effect on both prosecution and defence decision-making and ultimately could adversely affect trial outcomes.     

Psychological assessment of forensic psychiatric outpatients

The 1960s decrease in long-term residential mental health care resulted in former psychiatric patients being admitted to correctional and forensic psychiatric facilities. Although psychologists face challenges in managing and treating this displaced population, assessment data plays a pivotal role in the determination of appropriate aftercare for the mentally ill parolee. This article discusses the assessment protocol utilized by the Forensic Conditional Release Program (CONREP) in California, summarizes data from these patients, and uses case excerpts to illustrate the potential value of assessment with a forensic psychiatric (outpatient) population. Special emphasis is given to the use of the MMPI-2 and Rorschach.     

No-show at a forensic psychiatric outpatient clinic: risk factors and reasons

Nonattendance for and late cancellations of scheduled appointments, that is no-show, is a well-known phenomenon in psychiatric outpatient clinics. Research on the topic of no-show for initial and consecutive appointments in the field of forensic psychiatry is scarce. This study therefore aims to determine the prevalence and causes of no-show and to explore reasons for nonattendance. The study was carried out in an outpatient clinic in northern Netherlands. Telephone interviews were administered to 27 no-show clients, 84 follow-up no-show clients, and 41 attendees of 18 years and older. A no-show rate of 24.9% and a follow-up no-show rate of 9.8% was found. The majority of appointments missed were in the beginning phase of clinic contact. No-show clients were younger than their attending counterparts and more often dropped out from clinic contact. Also, less family social support was experienced by nonattendees. Reasons for nonattendance were having forgotten about appointment and work commitments.     

The forensic psychiatric evaluation of mental disorders in diabetic patients

The article deals with the results of investigation of psychic disturbances in 7 patients with diabetes mellitus. Psychic dysfunctions which are important for forensic psychiatric practice (depressions, transitory psychotic episodes at the background of hyperglycemia and pathologic states with consciousness disturbance, psychomotor excitement and incorrect behaviour in hypoglycemic states) were analysed. Characteristics were noted which contributed to diagnosing in patients with diabetes mellitus, the states of temporary morbid mental disorder and choosing correct expert conclusion in relation to persons who committed indictable actions.     

The dynamics of oligophrenia from the forensic psychiatric aspect]

Clinical-catamnestic examination of patients with oligophrenia (71 subjects) who performed socially dangerous acts and were brought to the Research Institute of General and Forensic Psychiatry named after V. P. Serbski? for in-patient forensic psychiatric expertise was carried out. All the individuals examined are people who at least once were recognized irresponsible with diagnosis "oligophrenia at debility level". Presence of dynamic shifts both in main symptomatology of illness and in concomitant emotional-volitional manifestations were detected; prognostic variants of disease development and social adaptation of oligophrenics were noted. Group of patients with mental deficiency, who needs introduction of "limited sanity" term was singled out.     

Digital evidence strategies for digital forensic science examinations

Given the size and complexity of many digital forensic science device examinations, there is a need for practitioners to formally and strategically determine a course of conduct which allows them to undertake the most robust and efficient examination possible. This work outlines both the need for practitioners to have a digital evidence strategy (DES) when tackling any given examination scenario, how to construct one and the concerns which exist when no formal DES is in place. Approaches to DES development are examined and the context to which they should be deployed are analysed, with focus being on the use of DESs at the examination/processing stage of the investigative workflow. Finally, a ‘DES skeleton’ is offered to guide practitioners as they seek to create their own DES.