By K. Alexander Adams and Youngsung Kim

This paper uses panel data from 1980 to 2018 in all 50 U.S. states and the District of Columbia to examine the relationship between liberalized concealed carry laws, homicide, and firearm homicide. Multivariate regression analysis was conducted with state and time fixed effects. A general-to-specific procedure was also used to reduce the arbitrariness of choosing control variables in the crime equation. Various robustness checks were also employed, including the use of a generalized synthetic control model. The relationship between shall-issue and constitutional carry laws and homicide were statistically insignificant at the 1%, 5%, and even 10% level. The results were robust to multiple alternative model specifications. We find no evidence that looser concealed carry laws pose a significant public health or criminological risk.

Unpublished paper, 2023. 

By Jeremy Horder

A number of jurisdictions world-wide have changed or are considering changing their homicide laws. Important changes have now been recommended for England and Wales, and these changes are an important focus in this book, which brings together leading experts from jurisdictions across the globe — England, Wales, the US, Canada, France, Germany, Scotland, Australia, Singapore, and Malaysia — to examine key aspects of the law of homicide. Key areas include the structure of the law of homicide and the meaning of fault elements. For example, the definition of murder, or its equivalent, is very different in France and Germany when compared to the definition used in England and Wales. French law, like the law in a number of US states, ties the definition of murder to the presence or absence of premeditation, unlike the law in England and Wales. Unlike most other jurisdictions, German law makes the killer's motive, such as a sadistic sexual motive, relevant to whether or not he or she committed the worst kind of homicide. England and Wales are in a minority of English-speaking jurisdictions in that these two countries do not employ the concept of 'wicked' recklessness, or of extreme indifference, as a fault element in homicide. Understanding these often subtle differences between the approaches of different jurisdictions to the definition of homicide is an essential aspect of the law reform process, and of legal study and scholarship in criminal law. Every jurisdiction tries to learn from the experience of others.

Oxford, UK: Hart Publishing, 2007. 265p.