Citation:Sánchez-García J, García-Berrio A, Brisley A, Masanet MJ, Grassi P, Mansilla JC, Márquez F, Lavielle L, Chévez C, Touhtouh R, Najjar S, Larbi B, Feixa C. Legal considerations concerning youth street groups in TRANSGANG regions. Barcelona: Universitat Pompeu Fabra; 2019. 35 p. Co-published by the European Research Council.