vice squad

noun
1
a police department in Britain or the US that tries to prevent prostitution, gambling, drug dealing and similar offences. The official name for this department in Britain is now the Human Exploitation and Organised Crime Command.
واحد مبارزه با مفاسد اجتماعی, بخش مبارزه با فحشا, واحد جرایم اخلاقی, بخش مقابله با قماربازی