1. A process for control of persons, wherein different control and/or inspection steps are conducted at different control and/or inspection points intended to be crossed by a person, the process being executed by a system comprising said control and/or inspection points, placed in an inspection zone to be crossed to access a zone of secure access, wherein the process comprises execution of the following operations: when a person passes a first control and/or inspect point: acquisition of biometric data of a person, generation of a security identity token, the token being an encrypted biometric signature obtained from a biometric datum acquired on the person, generation of a public identifier associated with said token and storage of said identifier in a database storing the public identifiers in association with the identity tokens or the data from which they are generated, when a person passes at least one other control and/or inspect point, acquisition of a biometric datum on said or the same biometric traits as those on which the biometric datum has been acquired during passage to the first control point, and from which the identity token has been generated, obtaining, from said biometric datum, an encrypted biometric datum by performing the same encrypting protocol than the one performed to obtain the secure token, determination of the public identifier of the person by performing authentication of said person by comparison of the encrypted biometric datum to the secure identity token, the comparison being performed by means of a secure calculation protocol, association with the public identifier of a person of security information relevant to said person and/or to the control and/or inspection processing executed at the level of said point, and saving of this information with said public identifier in the database.