What does the FBI do with information and evidence gathered during an investigation?
If a possible violation of federal law under the jurisdiction of the FBI has occurred, the FBI will conduct an investigation. The information and evidence gathered in the course of that investigation are then presented to the appropriate U.S. Attorney or Department of Justice official who will determine whether or not prosecution or further action is warranted. Depending on the outcome of the investigation, evidence is either returned or retained for court. What does the FBI do with persons it arrests in the course of an investigation? A person arrested by the FBI is taken into custody and photographed and fingerprinted. In addition, an attempt often is made to obtain a voluntary statement from the arrestee. The arrestee remains in FBI custody until the initial court appearance, which must take place without unnecessary delay.