First of all let me thank you kuger for driving attention to what is going in Sudan in regards of gold prospecting. Secondly there is no such a thing "druglord types" or (Lords) of any type for that matter. I really don't know who told you that story , or may be you're trying to spice things up

The fact is the recent (new) gold rush in Sudan started around 2008 - I say new because there were other gold rush events in the past one was in the 80's years- that one was only with hand pans , no metal detectors were used because they didn't (the prospectors) know about them. Advancement in Metal detection made it easier for any one who has the money to buy and go metal detect. It's simply that. I can understand why most Western citizens and particularly (Americans) have wrong misconceptions about Africa in general and especially Sudan. Every western media story I learn of (be it in Mass media or online) has fake reports of a hell place called Sudan. Now let me clear a few things a head of the way. I have no intention to offend or spread hatred against any party ,so to speak. I live in Sudan and I am an Artisanal Small Miner (ASM) as we are called.
Working in the field I can assure you that that out there in My country the prospectors work in groups, they divide the work between them. And the rewards they may gain. So for example if there is a group heading to the fields to detect , the owner of the metal detector gets 1/3 of the share , the truck/auto/car owner gets 1/3 , the workers who use the metal detector and dig the finds get 1/3. Any expenses and rewards are shared in equal , if the owner of the metal detector happens to be the truck/car owner his share increases obviously. No one has to be forced to work , they all work like a team, living together sharing place of sleep, food water and other supplies and of course the Gold. NO Guns , none nada. Only if they try to protect themselves from wild life threats (may be foxes or wolfs but these animal predators are getting rare to be found lately) . How I know all this ? I am a metal detector my self, now before I get bashed on or worst get banned for saying such things here - I hope not-
I work by my self and have few partners who work instead of me if I am out of the fields for whatever reason, I trust them, so if they find any thing they will bring me my share.
The thing kuger referring to is reallly happening but not in the Sudan, these things are common in other neighboring African countries such as Congo for example. In Sudan particularly in Northern and Eastern parts (states) where the major gold findings are , there is No incedents like that. People there collaborate in a friendly business like way.
Just a little clarification, and may update that if I feel necessary.
Cheers