[1] The BNI has investigative jurisdiction to arrest or detain and interrogate over a wide range of criminal offenses.

[1] Among the duties of the Bureau of National Investigations are dealing with organized crime and financial crime, espionage, sabotage, terrorism, hijacking, piracy, drug trafficking and providing intelligence to counter threats to Ghana's national security[1] and also perform such other functions as may be directed by the President or the council.

[4] The Bureau of National Investigations, previously known as the "Special Branch," is a counterintelligence and internal security agency, composed of civilian personnel whose role is to establish close surveillance over opponents of the Republic of Ghana and the Government of Ghana.

[5] The BNI has power to interrogate and detain people whom they suspect of subversion without trial indefinitely, on grounds of national security of the Republic of Ghana.

[6] The BNI has overriding statutory authority over other security services The organization investigates crimes of any shape or form as enshrined in the constitution of Ghana.