The idea of a unified criminal law has been raised and mooted in several discussions owing to the many challenges that arises from an attempt to carry out same. The most glaring challenge arises from the fact that all states are constitutionally empowered to create applicable criminal laws. Although States have not departed majorly from the two Acts (Criminal and Penal Code), a perusal of the laws would reveal that some states are more advanced and proactive in the review of the criminal laws and punishment. A dedicated attempt by the States to review their criminal law and indeed all laws regularly may just be the solution to eradicating the disparity in the development of criminal law in Nigeria as a whole.