A gate apparatus includes an acquisition unit, a matching request unit, and a control unit. The acquisition unit acquires biological information about an examination target user. The matching request unit requests a server apparatus that stores biological information about users and MRZ (Machine Readable Zone) information written in machine readable zones in passports issued to the users in association with each other to perform matching on the biological information about the examination target user. The control unit controls a gate so that the examination target user can pass through the gate if information is successfully read out from an IC (Integrated Circuit) chip in a passport issued to the examination target user by using MRZ information determined by the matching.