Abstract: The invention provides a theft surveillance case having a stationary member (100) and hook-shaped locking portions (203, 204). Two projecting portion groups (121, 122; 123, 124) are formed in the stationary member (100) with a predetermined distance between them, so that they can lock a CD accommodating case (500) either at a fixing position where the CD accommodating case is clamped by pawl portions (105, 205) or at a position where the CD accommodating case can be disconnected. The distal end portions of the hook-shaped locking portions (203, 204), which are positioned and locked at either a position where they have ridden over the outer one of the two projecting portions of the projecting portion group (121, 122; 123, 124) or a position where they have ridden over the projecting portion at the deeper side, have substantially L-shaped sections and flat portions at their top portions.