On this occasion Kogenshi was given a left half of a tally called Kankei (a tally used by military forces when they passed through Sangen in case of emergency) which was kept by Kurazukasa (a public office dealing with tallies for Sangen, clothes of Emperor and Empress, and so on) and compared it at Sangen with a right half which had been kept by Kokushu (the governor of a province).
この際、蔵司が保管する関契とよばれる割符の左符が固関使に与えられ、三関で国守によって保管されていた右符と照合を行なう。