To some extent, Somalia. They have a 'xeer' system which is by design independent of the government and works as essentially a peer-to-peer justice system but with a fairly common set of 'law' throughout the country. It works through a process of decentralized judges which are appealable through inter-tribal courts ensuring the process is largely divorced from both the government and any one tribe.

There have been a few cases of Somalis for example even killing government police/military and them being found not guilty in xeer court and even the government respected the decision.