Provided is an identification medium with which it is possible to view a latent image having a plurality of colours, even when a polarization filter is positioned away from the identification medium. The identification medium is provided with a cholesteric liquid crystal layer (102) as a specific polarization reflection layer for reflecting light of a specific polarization state, and an optical anisotropic layer (106) having refractive index anisotropy is disposed in a position overlying the cholesteric liquid crystal layer (102). An image (A) which is composed from a region having optical anisotropy different from that of the periphery thereof is formed in the optical anisotropic layer (106). When the identification medium (100) is viewed directly, the image (A) cannot be seen as the effect of the optical anisotropy cannot be seen. When viewed through a circular polarization filter, the image (A) can be seen in specific colours due to the effect of the optical anisotropy.