The Bail Reform Act system for contesting pretrial detention is the sole remedy for challenging federal pretrial detention; although Habeas theoretically runs, the prudential limits on the writ require the courts to deny any requests for relief not channeled through the Bail Reform Act processes.
http://www2.ca3.uscourts.gov/opinarch/181749p.pdf
Since 2011. An occasional commonplacing of the U.S. Circuit Courts of Appeal.
Neither an authoritative statement of the law nor legal advice. Quick work.