Along with the Post Stations, the government created a system of Check Stations along the Five Routes. Unlike the Post Stations, which provided for travelers, the Check Stations served a regulatory purpose, controlling the movement of people and goods. Some of the uses of these stations were preventing the trafficking of firearms, ensuring that the various rules and policies surrounding the "sankin-kōtai" were followed, and checking the passports of travelling commoners. Fifty-three Check Stations were created in the 17th century. (This is not to be confused with the 53 Stations of the Tōkaidō, which refers to the Post Stations on the Tōkaidō.)