Do not say, “I will pay back evil!” Wait for Adonai, so He may deliver You.
Proverbs 20:22 TLV

This isn't about ensuring justice in your community, but about exacting justice for yourself. Defend the weak and stand up to bullies, but don't make vengeance an end in itself. Don't try to get even, and if the government won't give you justice, don't seek it on your own.