Homicide patterns for the last 20 years in South and South East Delhi, India.

Homicide patterns are a useful indicator of social stress in a community, and they provide law-enforcement authorities with helpful information. This study was undertaken at the All India Institute of Medical Sciences, New Delhi, India, in order to understand the regional pattern of homicide. Data from the last 20 years were analysed. There were a total of 1048 male and 323 female homicide cases. The male/female ratio was about 3:1, and the proportion of total autopsies was approximately 4% for both sexes. The most common age group was 11-40 years old. Female cases were more common during the monsoon season, but male cases did not show any such variation. Blunt-force head injury, stabbing, strangulation and shooting were the most common methods, and the head, neck and chest were the most commonly targeted areas. Defence injuries were seen in 7.9% cases, significantly more often amongst men, most of which were active and in the form of incised wounds. About 17% of cases survived in hospital for up to a month before succumbing to their injuries, with males being in their 50s and 60s and females in younger age groups. Most of these cases suffered a gunshot wound, followed by a head injury and a stab wound.