A system for conveying objects, implementing: - reusable boxes intended to contain the objects and each associated with at least one identification code, each reusable box integrating: - electromechanical locking means in a closed position of the reusable box; - first long-distance communication means, - an on-board computer unit, - an IT platform including a first database relating to the reusable boxes listing the identification codes of all the reusable boxes, the IT platform also including a second database relating to recipients of the reusable boxes, and including second long-distance communication means able to communicate with the first long-distance communication means of the reusable boxes, characterized in that the system implements at least one biometric data capture device accessible from outside a reusable box, each biometric data capture device being associated with long-distance communication means able to communicate with the second long-distance communication means, and in that the IT platform is parameterized to: - receive at least one digital biometric data file via the biometric data capture device and long-distance communication means, - record, in the second database, the digital biometric data file by associating it with said recipient, - subsequently record a request for delivery of another reusable box, called a second reusable box, to said recipient, - transmit the digital biometric data file(s) to the on-board computer unit of the second reusable box, the second reusable box carrying a biometric data capture device and the on-board computer unit being parameterized to issue an opening authorization instruction if the biometric data capture device of the second reusable box provides data conforming to the digital biometric data file transmitted by the platform. - reusable boxes intended to contain the objects and each associated with at least one identification code, each reusable box integrating: - electromechanical locking means in a closed position of the reusable box; - first long-distance communication means, - an on-board computer unit, - an IT platform including a first database relating to the reusable boxes listing the identification codes of all the reusable boxes, the IT platform also including a second database relating to recipients of the reusable boxes, and including second long-distance communication means able to communicate with the first long-distance communication means of the reusable boxes, - electromechanical locking means in a closed position of the reusable box; - first long-distance communication means, - an on-board computer unit, - an IT platform including a first database relating to the reusable boxes listing the identification codes of all the reusable boxes, the IT platform also including a second database relating to recipients of the reusable boxes, and including second long-distance communication means able to communicate with the first long-distance communication means of the reusable boxes, characterized in that the system implements at least one biometric data capture device accessible from outside a reusable box, each biometric data capture device being associated with long-distance communication means able to communicate with the second long-distance communication means, and in that the IT platform is parameterized to: - receive at least one digital biometric data file via the biometric data capture device and long-distance communication means, - record, in the second database, the digital biometric data file by associating it with said recipient, - subsequently record a request for delivery of another reusable box, called a second reusable box, to said recipient, - transmit the digital biometric data file(s) to the on-board computer unit of the second reusable box, - receive at least one digital biometric data file via the biometric data capture device and long-distance communication means, - record, in the second database, the digital biometric data file by associating it with said recipient, - subsequently record a request for delivery of another reusable box, called a second reusable box, to said recipient, - transmit the digital biometric data file(s) to the on-board computer unit of the second reusable box, the second reusable box carrying a biometric data capture device and the on-board computer unit being parameterized to issue an opening authorization instruction if the biometric data capture device of the second reusable box provides data conforming to the digital biometric data file transmitted by the platform.