The FBI can investigate any federal crime, whether it is considered to be "white" or "blue" collar. If someone bashes the head of a federal officer with a lead pipe, the FBI has the authority to investigate that federal crime.
There are a lot of "It Depends" possibilities here, but if the crime crosses state lines in the US, the FBI will be involved.
They are technically police expect they don't protect the crime scene they investigate
The FBI is authorized to investigate any criminal offfense embodied in the US Code.
Either the FBI or nobody because they have bigger fish to fry.
Bank robbery is a federal offense in the United States, which means that the FBI has jurisdiction to investigate. It is also a crime under state laws, which means that local and state police departments can also investigate it.
The abbreviation IC3 stands for the Internet Crime Complaint Center. This government agency is a collaboration between the National White Collar Crime Center, the Bureau of Justice Assistance, and the FBI. They accept internet crime complaints and investigate them.
Sure.
Check the FBI Uniform Crime Report link on the FBI web site.
The police will investigate the crime. Holmes can investigate anything.
Report it to your local police department first. If it's a crime which falls into the FBI's jurisdiction, then the PD will forward it to the FBI.
Broad answer is... yes, they could.