Yup. Huber was not appointed to prosecute anyone outside his jurisdiction. Can’t. 6th Amendment directly prohibits it.
“In all criminal prosecutions, the accused shall enjoy the right to a speedy and public trial, by an impartial jury of the State and district wherein the crime shall have been committed; which district shall have been previously ascertained by law...”
“Huber was not appointed to prosecute anyone outside his jurisdiction. Cant. 6th Amendment directly prohibits it.”
In the letter to Chuck Grassley that publicly named Huber, AG Sessions touted his successful history leading task forces. Task Forces are multi-jurisdictional - commonly used to investigate wide-ranging criminal operations like drug cartels, gangs or terrorist organizations.
With the AG in the loop, it would be routine to coordinate the filing of charges in whatever jurisdiction they determine appropriate.
Does that mean investigation too, because the quote you posted mentions trial only?