http://www.freerepublic.com/focus/f-bloggers/3255081/posts "The permits have been a success by most observers standards, following the pattern in other states. The first permits were issued late in 2011. Only one person with a permit has been convicted of a homicide since that time. Wisconsin has an adult population (21 or over) of about 4.3 million. Thus, people with permits are about 1 out of every 18 Wisconsin adult residents. The one homicide in three years translates into a homicide rate for Wisconsin permit holders of about .3 homicides per 100/000 people per year. That is approximately 1 tenth of the homicide rate for Wisconsin on average. It is similar to the rate for permit holders in Minnesota. According to the FBI, the Wisconsin homicide rate for 2012 was 3.0, and 2.8 for 2013."