A distributed system (1; 11; 21) for access control and sobriety testing, comprising a central control unit (3; 13; 23; 33), in which general authorization information is stored, an authorization control and sobriety testing station (2; 12; 22; 32), and at least one access control unit (4; 14; 24), wherein the authorization control and sobriety testing station (2; 12; 22; 32) is configured to obtain authorization data provided by an individual seeking access and to send the authorization data to the central control unit (3; 13; 23; 33), the authorization control and sobriety testing station (2; 12; 22; 32) is configured to analyse a bodily signature sample provided by the individual seeking access and to detect the presence of alcohol in the bodily signature sample, and to send the result to the central control unit (3; 13; 23; 33), characterized in that: the central control unit (3; 13; 23; 33) is configured to issue temporary authorization information based on a positive match between the general authorization information and the authorization data provided by the individual seeking authorization and no detection of alcohol, and the authorization control and sobriety testing station (2; 12; 22; 32) and the access control unit (4; 14; 24) are provided at different locations and arranged so that a user will first encounter the authorization control and sobriety testing station (2; 12; 22; 32) at a first location and at a later stage encounter the access control unit (4; 14; 24) at a second location, and the at least one access control unit (4; 14; 24) is configured to obtain the temporary authorization information and to verify the validity of the temporary authorization information, and to, based on a positive verification, grant access to the individual seeking access, and wherein the access control unit is operable to perform part of the access procedure as a stand-alone unit, without having to communicate with the central control unit (3; 13; 23; 33) during all steps of the access procedure. the authorization control and sobriety testing station (2; 12; 22; 32) is configured to obtain authorization data provided by an individual seeking access and to send the authorization data to the central control unit (3; 13; 23; 33), the authorization control and sobriety testing station (2; 12; 22; 32) is configured to analyse a bodily signature sample provided by the individual seeking access and to detect the presence of alcohol in the bodily signature sample, and to send the result to the central control unit (3; 13; 23; 33), the central control unit (3; 13; 23; 33) is configured to issue temporary authorization information based on a positive match between the general authorization information and the authorization data provided by the individual seeking authorization and no detection of alcohol, and the authorization control and sobriety testing station (2; 12; 22; 32) and the access control unit (4; 14; 24) are provided at different locations and arranged so that a user will first encounter the authorization control and sobriety testing station (2; 12; 22; 32) at a first location and at a later stage encounter the access control unit (4; 14; 24) at a second location, and the at least one access control unit (4; 14; 24) is configured to obtain the temporary authorization information and to verify the validity of the temporary authorization information, and to, based on a positive verification, grant access to the individual seeking access, and wherein the access control unit is operable to perform part of the access procedure as a stand-alone unit, without having to communicate with the central control unit (3; 13; 23; 33) during all steps of the access procedure.