Prateek Rastogi

Sex differences from fingerprint ridge density in Chinese and Malaysian population

The fingerprints are very typical for a human being. The present study was undertaken to study the gender differences in fingerprint ridge density in Chinese and Malaysian population. The study done on 200 subjects (100 males and 100 females) of Chinese origin and 100 subjects (50 males and 50 females) of Malaysian origin revealed that significant gender differences occur in the finger ridge density. Fingerprint mean ridge density of 12 ridges/25 mm(2) or less is found to be more likely to be of males and a mean ridge count of more the 13 ridges/25 mm(2) is more likely of female origin in Chinese subjects. Fingerprint mean ridge density of 11 ridges/25 mm(2) or less is found to be more likely to be of males and a mean ridge count of more the 13 ridges/25 mm(2) is more likely of female origin in Malaysian subjects.

Sex differences from fingerprint ridge density in the Indian population

Determination of individuality is one of the prime concerns in forensic investigation. The study of fingerprints is widely used in providing a clue regarding identity. The present study was undertaken to study the sex differences in fingerprint ridge density in the Indian population. The study done on 100 males and 100 females revealed that significant sex differences occur in the fingerprint ridge density. The present study shows a statistically significant difference in fingerprint ridge densities of male and female fingerprints in people of Indian origin. A mean fingerprint ridge density of 12 ridges/25 mm(2) or less is found to be more likely to be of males and a mean ridge count of more the 12 ridges/25 mm(2) is more likely to be of female origin.

Sex Determination from Hand Dimensions of North and South Indians

Abstract:  When dismembered human remains are encountered, the decedent’s sex may not be obvious. For these scenarios, techniques for sex determination may play a vital part of the medicolegal investigation. Five hundred hands (230 males, 270 females) from North and South Indian region were studied to investigate sexual dimorphism in hand dimensions (hand length, hand breadth, and palm length). The hand index (hand breadth/hand length × 100) and the palm index (hand breadth/palm length × 100) were derived. The hand dimensions show a higher accuracy in sex determination when compared to indices. Of all hand dimensions, hand breadth has the highest accuracy of sex determination in the study group. The sex differences were found to be statistically significant only for the hand index on the left side. The morphometric parameters of the hand show considerable sexual dimorphism in the Indian population while the hand and palm index remain poor sex indicators. The study thus has medicolegal implications when a dismembered hand is brought for examination.

Sexual dimorphism of the index to ring finger ratio in South Indian adolescents.

Sex determination from prepubertal human remains is a challenge for forensic experts and physical anthropologists worldwide as definitive sexual traits are not manifested until after the full development of secondary sexual characters that appear during puberty. The research was undertaken in 350 South Indian adolescents to investigate sexual dimorphism of the index and ring finger ratio. The index finger length (IFL) and the ring finger length (RFL) were measured in millimeters in each hand and the index and ring finger ratio was computed by dividing the index finger length by the ring finger length. Mean RFL was greater than mean IFL in both males and females. Mean RFL was significantly higher in males. The index and ring finger ratio showed a statistically significant difference between males and females (p </= 0.001). The index and ring finger ratio was found to be higher in females (0.99) when compared to their male counterparts (0.95). The index and ring finger ratio thus shows sexual dimorphism in the South Indian adolescents that may prove useful to determine the sex of an isolated hand when it is subjected for medicolegal examination. The study suggests that a ratio of 0.97 and less is suggestive of male sex, while a ratio of more than 0.97 is suggestive that the hand is of female origin among South Indian adolescents.

A retrospective review of homicides in Mangalore, South India

A five-year retrospective study of homicides was carried out to determine the profile of victims and the pattern of injuries sustained between 2001 and 2005 at Government District Wenlock Hospital, Mangalore, South India. Of the 89 victims of homicide, 71 were males and 18 were females. On an average, about 17 cases of fatal assault cases were autopsied each year. The commonest age group affected was the 21-30 age group (28.1%). The head was found to be the most common site of injury followed by the extremities, abdomen and chest. In 49.4% of the cases, the victims had sustained sharp force injuries while in 34.8% blunt force injuries were present. Fatal injuries to the head were the commonest cause of death. Homicide by strangulation was seen in 8 cases and involved mostly women. The incidence of homicidal burns was low (n = 2, 2.2%). In 61.8% of the cases, death was immediate. In 52.8% of the cases the assailant(s) had a pre-planned motive for killing.

Postmortem diagnosis of acute haemorrhagic pancreatitis

Forensic pathologists can help in the investigation of sudden unexpected deaths in co-operation with the officials responsible for the maintenance of law and order to administer justice. Sudden unexpected deaths form the subject of medicolegal investigation if they occur in apparently healthy individuals, wherein an autopsy would shed light regarding the cause of death. A 4 year retrospective review of autopsy files at the Department of Forensic Medicine, Kasturba Medical College, Mangalore, South India was undertaken for cases of sudden unexpected deaths due to acute haemorrhagic pancreatitis occurring between May 2004 and April 2008. A total of seven cases of acute haemorrhagic pancreatitis diagnosed at autopsy as the cause of sudden unexpected death during the study period are discussed herein.

Sudden death due to pulmonary aspergillosis

Sudden death due to respiratory pathology is not uncommon and tuberculosis with its complications is well known to cause death. We report a case of a male, train passenger, who started coughing out blood and died on reaching the hospital. Medicolegal autopsy confirmed the sudden unexpected death to be due to pulmonary aspergillosis in the person with past medical history of tuberculosis.

Acute haemorrhagic pancreatitis – A case of sudden death

Sudden death in young individuals is relatively uncommon and acute haemorrhagic pancreatitis as a cause of sudden and unexpected death is a rare phenomenon. A case of sudden death due to acute haemorrhagic pancreatitis is reported in a young doctor who ignored the radiating pain of acute pancreatitis for gastritis, and resorted to self-medication. The condition was discovered only at autopsy.

Apparent partial hanging.

A careful analysis of circumstances and investigations of death scene are required before commenting on the manner of death in a case of hanging. Hanging may result from either complete or incomplete suspension of the body. Two cases of hanging are reported where discrimination in eyewitnesss account and death scene investigation report was evident regarding type of hanging (complete/partial). The use of term apparent partial hanging is proposed in such cases. Body position in hanging is one of the numerous factors that determine the strength of the neck compression by the ligature and thus should be considered in the evaluation of dying process and pathomorphologic feature of hanging. The cases also put a probable explanation to the higher incidence of partial hangings in different studies. We believe that incidence of true partial hangings may be much lower than that reported in the literature.

The Mangalore Aircrash of 22 May 2010: Practical Problems Related to Identification of the Dead in a Populous Developing Country

It was a sad and emotional moment for the citizens of Mangalore, India when the “Dubai to Mangalore” Air India Express Boeing 737-800 flight IX-812 crashed at the Mangalore International Airport on 22 May 2010, killing 158 people on board. Identification of the victims was difficult as most of the bodies were charred beyond easy recognition. The practical problems faced by the legal authorities in identifying the charred victims in a populous and developing country like India are discussed in this paper.