Modern states have developed mechanisms for requesting and obtaining evidence for criminal investigations and prosecutions. Investigative Service for more complex investigations. They are responsible for the entire process of investigations and court prosecutions. The inquiry will run alongside the criminal investigations. The incident resulted in security investigations and legal inquiries. The raid was part of two ongoing criminal investigations which are focused on two concerns. No further public investigations have been conducted since. In 1968 Congress passed a law that provided warrants for wiretapping in criminal investigations. Police detectives are responsible for investigations and detective work. There are multiple investigations and jurisdictions involved with the case. Detectives have a wide variety of techniques available in conducting investigations. As with investigations of Nazi war criminals, official investigations and inquiries are still ongoing. None of the other Benghazi investigations identified wrongdoing by any individuals. They are responsible for providing consultations to operations, investigations, and related projects and matters. These studies also list the need for more robust research investigations.