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, characterized by executing the following operations: when a person passes a first control and/or inspection point: acquisition of biometric data of the person, generation ( 1120 ) of a secure identity token (J), the token being an encrypted biometric signature obtained from a biometric datum acquired on the person. generation of a public identifier (ID) associated with said token and storage of said identifier in a database ( 30 ) storing the public identifiers (ID) 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 inspection 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 (J) has been generated, determination ( 1210 ) of the public identifier of the person by performing authentication of said person from the datum or data acquired and the data stored in the database.