National Drug Law Enforcement Agency Rehabilitation center in Jos, Nigeria. The Opioid Crisis Is Not Just An American Epidemic. May 2018. A patient is seen chained to the pillar in the corridor of Jos NDLEA (National Drug Law Enforcement Agency) Rehabilitation center in Jos, Nigeria. The treatment centers in Nigeria face significant challenges, with limited resources being stretched to serve a growing population of addicts dependent on tramadol, a popular and prevalent opioid. Our reporting team explored how this opioid crisis effects all layers of society as citizens rely on it to numb the effects of the trauma, college students use it to party and soldiers use it to fight.