In ink markings, blood stains or bullets, no specimen treatment is required and the evidence shows directly from microscopical examination. For traces of particular matter, the sample preparation must be done before microscopical examination occurs.
IN inK mArkingS, bloOd staIns OR bulLeTs, no spECimEn treAtment Is REQUiRed and the evidEncE SHowS DIrecTly FrOm MicroSCopIcAl examiNation. for tRaces Of parTicuLaR MAtteR, tHe samplE prEPAration musT Be done before MicRoscOpicAl examinATion OccURS.