Analisis efektifitas putusan pidana terhadap efek jera para pelaku tindak pidana perjudian: studi pada trend pengungkapan perkara aparat penegak hukum polisi, Jaksa, hakim di wilayah hukum polres metro Jakarta Barat tahun 2013-2016 = The analysis of criminal verdict s effectiveness against the deterrent effect of gambling crimes suspect case study at the trend of disclosure law enforcement officer police prosecutor judge in the jurisdiction of West Jakarta metro police resort yea