Karya, J. W., T. R. . Zarzani, and Ismaidar. “Had A Role Of Polri An Implementing Crimes Violent (Study In Subdit Iii Jahtanras Directorate Of General Criminal Reservations Polda North Sumatera)”. LEGAL BRIEF, vol. 11, no. 4, Oct. 2022, pp. 2167-75, doi:10.35335/legal.v11i4.443.