[Demonstration of early local vital reactions by combination of morphological investigation methods (author's transl)].

In extension of earlier Scanning Electron Microscopical findings on local vital reaction, we initially tried conventional microscopic histology. By standard staining methods--generally used in demonstrating fibrins (Ladew IG, PTAH, PAS etc.) fresh fibrinous mashing was hardly demonstrable. Tryptophan reaction as per Adams brought positive results. By modifying Scanning Electron Microscopic preparation techniques, the surface transverse striation could be shown. For dissolution of the complex morphological structural patterns on the wound surface, Transmission Electron Microscopy was used. Identification of fibrinous filaments was done by their interior transverse striation. Mashing of shaped structure components of the blood in vital and post mortal injuries should be more closely analyzed. Advantages and disadvantages of Scanning and Transmission Electron Microscopic techniques are discussed in view of forensic problems and a tentative judgement passed.