Head injuries of Roman gladiators

Gladiator remains from a recently unearthed cemetery in ancient Ephesus (Turkey) offer a unique opportunity for proving common theories involving the weaponry and techniques of gladiator fighting based on the evidence supplied by cranial bones. This mass grave is the first of its kind to undergo a thorough osteological and forensic examination. A minimum number of individuals (MNI) analyses revealed that at least 68 individuals. All individuals found turned out to have been males aged between 20 and 30 years, except for one female associated with a female slave gravestone, and one male aged 45-55 years, had been buried in this area of the cemetery. The male mean body height was 168 cm (S.D.=5 cm), which lies inside the normal range of height for Roman populations at those times. Eleven (16% of MNI) individuals exhibit a total of 16 well-healed antemortal cranial traumata. Five of the 11 individuals showed multiple trauma. Ten (15% of MNI) individuals exhibited a total of 10 perimortal cranial traumata. This is a surprisingly high frequency of deadly head injuries, taking into account that most of the gladiator types wore helmets. A possible explanation could be the frequently reported deathblow technique used by the hammer-carrying death god "Dis Pater". The gladiator weaponry is well known through historical sources. At least one injury per known type of offensive weapon could be identified, as well as evidence for the most popular, the gladiator trident, which was found to be represented by one perimortem and two antemortem injuries. Overall the reportedly very strict nature of combat rules for gladiator fights could be confirmed by the absence of multiple perimortal traumatized individuals, showing a lack of the excessive violence commonly observed on medieval battle ground victims. This graveyard gives the opportunity to confirm historical aspects and to check the reliability of forensic methods for identification of antemortem, perimortem, or postmortem bone lesions. Typical examples for these kinds of lesions and injuries are presented. The colour of the margins of the traumata proved to be the most distinguishing feature for postmortal lesions.     

Nine points of the law: evidentiary rules and the costs of litigation

If the defendant in a lawsuit is better informed than the plaintiff about the value of damages that could potentially be assigned by the court, biasing the burden of proof toward the plaintiff may lower aggregate efficiency losses from litigation.     

Elasticity in evaluations of criminal evidence: Exploring the role of cognitive dissonance

Purpose. Previous experiments have demonstrated asymmetrical scepticism in investigators' judgments of criminal evidence – evidence inconsistent (vs. consistent) with the dominant hypothesis about a case is judged as less reliable. In addition, some types of evidence (e.g., witness testimony) are more susceptible to asymmetrical scepticism than others (e.g., DNA evidence), indicating varying degrees of elasticity. This article proposes that inconsistent evidence arouses cognitive dissonance, and that the dissonance can be reduced through either asymmetrical scepticism (for high‐elasticity evidence) or belief change (for low‐elasticity evidence). The hypotheses are tested in two experiments. Methods. In both experiments, law students made a preliminary judgment about the guilt of a suspect in a homicide case, and subsequently received a piece of DNA or witness evidence which was either consistent or inconsistent with the preliminary judgment. The extent to which participants changed their guilt judgments, judged the additional evidence as reliable, and felt dissonance served as the main dependent variables. Results. Inconsistent (vs. consistent) evidence did arouse stronger dissonance, but only for witness (and not DNA) evidence. Experienced dissonance (Experiment 1) and dissonance reduction (Experiment 2) accounted for the effect of the evidence on changes in guilt judgments, but not for the effect on reliability judgments. The greatest dissonance reduction was observed among participants who received inconsistent witness evidence but did not change their guilt judgments accordingly. Conclusions. It appears that dissonance plays a significant, although complex, role in investigative judgments of guilt and reliability. Alternative dissonance‐reducing mechanisms that can account for the findings and practical implications are discussed.     

Accidental through and through penetrating injury to the neck

We present the case of a 24-year-old driver who died when a metal pole entered the front windshield, traveled through the victim's neck, and then exited via the back windshield. This case illustrated an unusual penetration injury and the importance of a thorough and complete death scene investigation.     

Characteristic Features of Severe Child Physical Abuse—A Multi-informant Approach

Minor child physical abuse has decreased in Sweden since 1979, when a law banning corporal punishment of children was passed, but more serious forms have not decreased. The aim of this study was to examine risk and background factors in cases of severe child abuse reported to the police. Files from different agencies (e.g., Social services, Adult and Child psychiatry and Pediatric clinic) for 20 children and 34 caretakers were studied. An accumulation of risk factors was found. It is concluded that when the following four factors are present, there is a risk for severe child abuse: 1) a person with a tendency to use violence in conflict situations; 2) a strong level of stress on the perpetrator and the family; 3) an insufficient social network that does not manage to protect the child; 4) a child that does not manage to protect him or herself. Thus, multiple sources of information must be used when investigating child abuse.