The current functions of the Directorate as provided for under the National Police service Act, 2011 include

Collect and provide criminal intelligence,
Undertake Investigations on serious crimes including homicide, narcotics crimes, human trafficking, money laundering, terrorism, economic crimes, piracy, organized crimes, and cyber crime among others.
Maintain law and order.
Detect and prevent crimes
Apprehend offenders
Maintain criminal records
Conduct forensic analysis
Execute the directions given to the Inspector General by the Director of Public Prosecutions pursuant to article 157(4) of the constitution
Coordinate Country Interpol Affairs
Investigate any matter that may be referred to it by the Independent Police Oversight Authority
Perform any other function conferred on it by other written Law.