RT Article T1 The institution of immunity witness in Poland: results of empirical studies conducted in the years 2001 - 2012 JF Aktualne problemy prawa karnego i kryminologii ; 6 SP 682 OP 697 A1 Rau, Zbigniew 1955- LA English YR 2014 UL https://krimdok.uni-tuebingen.de/Record/1505250196 SN 9788325563479 K1 Organisierte Kriminalität K1 Zeugenschutz K1 Polen