“…This is the analysis most widely requested by Italian Courts, because they are often interested in linking a dealer, who prepared and packed single doses from a quantity of drugs, to the drugaddicts to whom the doses were sold. Pieces of plastic film are also known to be used for the drug packages ingested by ''body stuffers'' [3,4], so their characterization can be exploited in reconstructing the dynamics also of international traffic of illegal substances. To the knowledge of the authors, no systematic study was reported on the European market about this specific type of forensic analytical problem.…”