Violence seems to be part of the human condition. Subsequently, most human societies tend to have violent groups springing up. The violent groups in question tend to fall into three major categories.
The first type of violent groups that we tend to see in various societies is that of youth gangs.
The second type of violent groups that we tend to see in various societies is that of vigilantes.
The third type of violent groups that we tend to see in various societies is that of militias.
Tackling the problems brought about by these groups is not easy. The best solution is usually to prevent the formation of the groups, in the first place. That can entail making improvements in intelligence gathering. That can also entail giving equal opportunities to all people: as the groups tend to come up in societies where there is sense of social injustice. One way of giving equal opportunities would be by creating employment. This should be decent employment: in the sorts of companies that, say, can afford the services offered at portal.adp.com, the latter being a portal where you can check your income online. So just providing employment isn’t enough: it has to be decent employment, which promotes human dignity.