Stand Your Ground laws and Castle Doctrine laws exist in 22 States. Stand Your Ground laws implement a legal framework that allows the use of deadly force without a duty to retreat if a person reasonably fears for his or her life or safety. Castle Doctrine laws allow the use of deadly force if your home is invaded; these laws assume that home invasion implicitly threatens bodily harm or death to the home's occupants. Supporters cite that these laws make their residents safer or at least make the residents safer that avail themselves of firearm protection.
Recently I became aware of a study done by two Texas A&M economists (See Link) suggesting the opposite. That is, they suggested that incorporation of Castle Doctrine laws actually increased the number of homicides in the states in question. I reviewed the paper and had to concede that much of their published work seemed to support their conclusions although the uptick in homicide rates did not seem too significant. After that, and with an open mind, I reviewed the data from the FBI UCR (Uniform Crime Reporting) database myself.
My conclusion is that the authors of the paper were wrong, while homicides increased slightly in the first year following implementation, overall, the homicide rate declined after that. Also, since correlation does not imply causality, Castle Doctrine and Stand Your Ground can neither be shown to neither decrease nor increase the homicide rates 2-3 years after implementation.
My conclusion is that the authors of the paper were wrong, while homicides increased slightly in the first year following implementation, overall, the homicide rate declined after that. Also, since correlation does not imply causality, Castle Doctrine and Stand Your Ground can neither be shown to neither decrease nor increase the homicide rates 2-3 years after implementation.