The FBI's highly sensitive public corruption investigations focus on all levels of government (local, state and federal) and include allegations of judicial, legislative, regulatory, contract and law enforcement corruption. Law enforcement corruption accounts for more than one-third of the current corruption investigations. These cases typically involve law enforcement officers accepting money to protect or facilitate drug-trafficking and organized criminal activity. Corruption strikes deeply at the public's trust in government.

FBI Phoenix has a public corruption squad in Phoenix to address corruption in central and northern Arizona as well as the Southern Arizona Corruption Task Force in Tucson to address public corruption throughout southern Arizona.