Abstract: The invention relates to a distributed system (1; 11; 21) for access control and sobriety testing comprising an authorization control and sobriety testing station (2; 12; 22; 32), which obtains authorization data and a bodily signature sample from an individual seeking access, a central control unit (3; 13; 23; 33), which, if there is a positive verification of the authorization data and no detection of alcohol in the bodily signature sample, issues temporary authorization information, and at least one access control unit (4; 14; 24), which obtains the temporary authorization information and, upon a positive verification of the temporary authorization information, grants access to the individual who is seeking such access.