Sobriety check locking key case

A vehicle operation sobriety control unit functional for preventing operation of a vehicle by an intoxicated individual, comprising:

• (a) a module operable for detecting and measuring a blood intoxicant concentration level of an individual and comparing a measured blood intoxicant concentration level relative to a threshold blood intoxicant concentration level,
• (b) a housing enclosing the module,
• (c) a blow tube in fluid communication with the module for delivering breath sample from a user to the module,
• (d) a slide tab extending from the housing operable for thumb activated sliding of the blow tube as between an extended use position and a retracted storage position concealed within the housing, and
• (e) a key case (i) selectively openable and closeable to provide and prevent access to a chamber respectively, (ii) operable for confining a vehicle start key within the closed chamber such that the confined vehicle start key is unable to start a vehicle, and (iii) default locked when closed to prevent access to the chamber when the key case is closed,
• (f) the key case in communication with the module for opening the key case when a blood intoxicant concentration level below the threshold blood intoxicant concentration level is detected by the module,
• (g) wherein the sobriety control unit has a shape that imitates a commonplace object so as to conceal the functionality of the sobriety control unit.