Security label

A security label wherein the label comprises laminating consisting of a first layer (1) to which is adhered a second layer (2) positioned such with respect to said first layer (1) that light interacts with a structure both the first layer (1) and the second layer (2) and results in a spectrum of lengths of predetermined and detectable wave and wherein said second layer (4) is separable from said first layer (1) in the case mechanical friction, chemical interaction, abrasion or any other form of material damage or structural alteration and causing separation of the second layer (2) a predetermined detectable in the spectrum of wavelengths angular change.