Introduction. Authentication of the threaded shooting-iron in modern practice of investigation of crime is an actual task, therefore search development of obschemedocheskikh bases of its decision creates a scientific prospect. Theoretical analysis. In the article, on the basis of tendency of the maximal use all represented possibilities of creation of single expert method of criminalistics research of the threaded shooting-iron and tracks of his application are considered in tracks of co-operation of the identification fields of the equated objects.
