For the purposes of this section, a law enforcement officer of the Amtrak Police Department, a law enforcement officer of the Federal Reserve, or a law enforcement or police officer of the executive branch of the Federal Government qualifies as an employee of a governmental agency who is authorized by law to engage in or supervise the prevention, detection, investigation, or prosecution of, or the incarceration of any person for, any violation of law, and has statutory powers of arrest or apprehension under
section 807(b) of title 10, United States Code (article 7(b) of the Uniform Code of Military Justice).