Say there's a major crime or incident. Local police turn up, then county police turn up then state police, then here come the FBI, then the CIA, the DEA and finally the secret service.
Who exactly is in charge of such a cluster fuck? Is it the FBI?
I guess it would matter what type of crime occurred. If it was a Federal crime, then I assume the FBI or other government organization would have jurisdiction.
The FBI does have jurisdiction over certain kidnapping cases:
1034. Kidnapping—Federal Jurisdiction
Federal jurisdiction over kidnapping extends to the following situations: (1) kidnapping in which the victim is willfully transported in interstate or foreign commerce; (2) kidnapping within the special maritime and territorial jurisdiction of the United States; (3) kidnapping within the special aircraft jurisdiction of the United States; (4) kidnapping in which the victim is a foreign official, an internationally protected person, or an official guest as those terms are defined in 18 U.S.C. § 1116(b); (5) kidnapping in which the victim is a Federal officer or employee designated in 18 U.S.C. § 1114; and (6) international parental kidnapping in which the victim is a child under the age of 16 years.
This may help:
To dispel some myths about the FBI, here are some things that it doesn't do:
--It is not a national police force; state and local law enforcement agencies are not subservient to the FBI. It's simply a different jurisdiction for different kinds of crimes.
--It doesn't "take over" cases from local agencies. If a crime partly involves FBI jurisdiction, or if it is serious enough to require FBI involvement, then the FBI forms a task force in which agents will work closely with state and local police.
--The FBI does not prosecute cases. It provides investigative information to United States attorneys, who then use that information to decide whether to prosecute.
Further:
Crimes that specifically fall under FBI jurisdiction include those in which the criminal crossed state lines, violations of federal controlled substance laws, and other violations of federal laws.