A security entrance system for restricting access from an infeed area to a protected area and diverting suspicious persons to one or more temporary containment areas comprising:
- a) one or more structures, each said structure being associated with one of said one or more temporary containment areas, each said structure defining an enclosed chamber with a first opening connecting the interior of such chamber with said infeed area, a second opening connecting the interior of such chamber with said protected area, and a third opening connecting the interior of such chamber with said temporary containment area associated with such chamber, each said structure including one or more first doors movable between a closed position in which said first doors of such structure block said first opening of such structure and an open position in which said first doors of such structure do not block said first opening of such structure, one or more second doors movable between a closed position in which said second doors of such structure block said second opening of such structure and an open position in which said second doors of such structure do not block said second opening of such structure, and one or more third doors movable between a closed position in which said third doors of such structure block said third opening of such structure and an open position in which said third doors of such structure do not block said third opening of such structure;
- b) one or more contraband detection systems, each said contraband detection system being associated with one or more said structures, operative to detect contraband entering said structure associated with said contraband detection system;
- c) one or more chamber monitoring systems connected to one or more of said structures, defining each said chamber, for measuring at least one characteristic of said structure associated with said chamber monitoring system;
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- d) one or more controllers connected to each said doors of each said chamber, each said detection system and each said chamber monitoring system, said controllers of such chamber, detection system and chamber monitoring system, operating cyclically each cycle including allowing said first door of such structure to open to allow a person entry to said chamber, actuating said detection system of such structure to scan said chamber for contraband entering said chamber and allowing said second door of such structure to open if no contraband is detected and said first door of such structure and said third door of such structure are closed, thereby allowing the person entry to said protected area, or allowing said third door of such structure to open if contraband is detected and said first door of such structure and said second door of such structure are closed, thereby allowing the person entry to said temporary containment area associated with such structure, said controller of such structure inhibiting operation of at least one of said doors of such structure if at least one characteristic of said structure as determined by said chamber monitoring system of such structure, while no person is present in said chamber, differs from a normal value of such characteristic, whereby said controller of such structure will inhibit passage of a person into said protected area associated with such structure if any object is left in said chamber during a preceding cycle.