It appear that we do not any law on vigilantism. it is pertinent to propose one ? I'm not very sure it is very pertinent to have it, I was making a suggestion
Something like
government law on vigilantes :
1 Vigilantism is illegal
2 The government ignore Vigilantes
3 Vigilantes is allowed, but not recognized as a professional
4 Vigilantes are allowed and recognized as professional
5 All vigilantes must work for the government
6 Local government decided about the regulation on vigilantism