the stories I heard are that the people were put in jail after incidents and their passports were taken away from them even though the investigation of the incidents have not completed, one of them was in jail for few days, another one for few months. I heard in Qatar the safety standards are not as high as most of western countries and the accidents are commonly happened on the sites, either small or big ones, if this is the case, why people take jobs in the regions for such responsibilities, is the money worth it or something else. in your friend's case, if it was not his fault, why he was suffered, and why he still stay there after what happened to him. this is really confused me.