Deuteronomy 19:20 Halakhah

וְהַנִּשְׁאָרִ֖ים יִשְׁמְע֣וּ וְיִרָ֑אוּ וְלֹֽא־יֹסִ֨פוּ לַעֲשׂ֜וֹת ע֗וֹד כַּדָּבָ֥ר הָרָ֛ע הַזֶּ֖ה בְּקִרְבֶּֽךָ׃

And those that remain shall hear, and fear, and shall henceforth commit no more any such evil in the midst of thee.

Read halakhic rulings (Jewish law) on Deuteronomy 19:20: and classical halakhic sources.