This study found that allowing citizens to carry concealed weapons deters violent crimes and it appears to produce no increase in accidental deaths. Another point regarding defensive uses of firearms, we have found that in the vast majority of those cases, the citizen is successful in defending themselves and stopping the attack. In most cases, merely displaying the firearm causes the criminal to stop the attack, it is very rare when the citizen has to fire the weapon to stop the attack. When they passed their very strict gun controls in 1921, their crime rate began to rise. In Switzerland, there is a state supplied full auto rifle in every home.
People can carry a concealed firearm in many places without a permit.
Their gun control is very weak, and their homicide rates around 1 per 100,000 people. In Israel, they have even weaker gun controls, and have about the same homicide rate. Similarly, in the US, Vermont also allows everyone to carry a concealed firearm without a permit, and their homicide rate is around 1 per 100,000 people as well. Clearly, it is not their gun controls that keep crime low in Japan, it is their lack of personal freedom. Regarding Canada, they implemented some moderate gun controls in the late 70s.