A system and method for identifying stolen component parts contained within an assembly andor identifying the origin of a component part. The inner external layer contains a molding composition having a first polyamide selected from a) PA 11, b) PA 12, c) PA 1012, d) PA 1212, e) a copolyamide of at least two of PA 11, PA 12, PA 1012 and PA 1212, said copolyamide containing not more than 30 mol % of a comonomer, and f) mixtures thereof. Alternatively, a C-PDSCH and a D-PDSCH are established to allow periodic transmission of MBMS, permitting users to simultaneously access one or more MBMS.