13. Japan
When it comes to border control, Japan, the number 13 on our list of countries with the strictest customs, border control and airport security in the world has the strictest conviction-related bars to entry. This refers to individuals who were “sentenced to imprisonment with or without labor for one year or more or to equivalent penalty” as well as those who were convicted for use of narcotics, opium or stimulants. Japan also improved airport security by adding additional screening of electronic devices. Even connecting passengers have to undergo security screening before they enter departure area.