美國司法部門的架構圖


而根據U S Marshals他的網站說法是
America's Oldest Federal Law Enforcement Agency


修正一下, 他網站上有這麼一段話:
"Today, the Marshals Service is responsible for providing protection for the federal judiciary, transporting federal prisoners, protecting endangered federal witnesses and managing assets seized from criminal enterprises."

裡面談到transporting federal prisonsers,所以電影"絕命追殺令"哈里遜福特,在運送過程逃跑,US Marshals部門就得介入把他給抓回來.