In this article the most crucial infomations about currently functioning in valid polish penality codex for 15 years now institution described as minor protected witness are presented. Author introduces basic law assumptions and their practical aspects of usage, which are extraordinary important by reason of trial activity, in particular to divide internal unity of members of the organised crime groups. Without doubt the basic foundation in case of this insitution is, rising many contoversions and contradictions range and character of revealed informations.