Gunpowder residues in domestic criminal practice

A qualitative overview of gunpowder residues, which are met in domestic criminal practice, is shown in this work. In this sense, it explain what is meant by gunpowder residues, it analyzes when, how and is where gunpowder residues occur, what is the real nature of these residues and in which way their existence can be interpreted, through concrete practical examples such as for determination of which facts gunpowder residues could be used. A critical review (advantages and disadvantages) of the diphenil-amin test method is given together with the way are the results of diphenil-amin test interpreted.