Following are a number of back-translations as well as a sample translation for translators of Proverbs 20:26:

• Kupsabiny: “A good leader exposes sinners,
  and punishes them without mercy.” (Source: Kupsabiny Back Translation)
• Newari: “A wise king sorts out the wicked and punishes them.” (Source: Newari Back Translation)
• Hiligaynon: “If a wise king judges, he really makes-sure that the one who did an evil (thing) will-be-known, and then he punishes (him).” (Source: Hiligaynon Back Translation)
• Kankanaey: “The wise king, he knows how to separate-out/distinguish the habitual-sinners and serious (lit. heavy) is what he judicially-determines as their punishment.” (Source: Kankanaey Back Translation)
• English: “Wise kings find out which people have done what is wrong,
  and they punish them very severely.” (Source: Translation for Translators)