Official Corruption in Nigeria
"The Government of Nigeria does not encourage or facilitate illicit production or distribution of narcotics, or the laundering of proceeds from illegal drug transactions. However, corruption plays a major role in drug trafficking in Nigeria. Nigeria has anti-corruption laws, but has secured only a few notable convictions, including that of a former NDLEA chief (though this was overturned on appeal). The perception of high levels of corruption and impunity encourages narcotic trafficking in Nigeria."
United States Department of State Bureau for International Narcotics and Law Enforcement Affairs, "International Narcotics Control Strategy Report: Volume I: Drug and Chemical Control (Washington, DC: March 2014), p. 254.