To provide a laid body which shortens time required for conversion from a normal mat to a crime prevention mat, and stably demonstrates both of a function as the normal mat and a function as the crime prevention mat.

A mat member 40 is rotated by rotation drive of a first motor roller 31 and a second motor roller 32. Thus, in normal time, a function as a normal mat is demonstrated by arranging a non-adhesive part 43 on the upper surface side, and while in emergency, a function as a crime prevention mat is demonstrated by converting arrangement of the mat member 40 and arranging an adhesive part 42 on the upper surface side. Namely, conversion from the normal mat to the crime prevention mat is performed in short time. Since a laid body has structure for switching the normal mat and the crime prevention mat according to rotation (arrangement) of the mat member 40, both functions are stably demonstrated.