Environmental Associations of Body Disposal in New Zealand Homicides

This study explores environmental factors associated with homicide in New Zealand, focusing on body disposal. Analysing 383 incidents through the lenses of Temperature Aggression and Routine Activity theories, we examined temporal, spatial, and associated influences. Temporal patterns, including higher homicide rates in the evening and on weekends, generally supported Routine Activity theory, highlighting situational and social factors in the occurrence of homicide. Spatial patterns revealed perpetrators typically dispose of bodies within close proximity to the crime scene, with distances rarely exceeding 50 km, suggesting law enforcement can improve investigative efficiency by concentrating search efforts nearby. There were greater odds of body disposal in rural regions, and reduced odds in residential homes. Our findings underscore the importance of strategic and informed investigative procedures. By adopting more targeted approaches, law enforcement may have greater success in the intervention of homicide through increasing the efficiency of investigations, ultimately enhancing public safety.