Well, I guess that is their version of a civil society. I would not want to see this kind of justice brought on by the state and a judge in this country. Western Civilization is more advanced than what this video depicts. Would not be a leap too far for this kind of justice to be applicable to other, less heinous crimes all at the whim of a Ruler, Military Junta or a democrat.
Arrest, try, convict and then execute. In short order. Having said this, If it was my child I'd probably forego the process and kill the motherfucker right where I find him. But like other anon said, much slower. I don't know, perhaps in hindsight, they are more civilized than we are.