AUSAs spend their time investigating cases; drafting indictments and other
pleadings; negotiating plea agreements; appearing in court for bail hearings, pretrial
motions, plea hearings, and sentencings; conducting jury trials; and briefing and arguing
appeals. On a given day, an Assistant may question witnesses before the grand jury, help
agents to prepare a search warrant, or review documentary evidence. Later that week, the
Assistant may brief the constitutionality of an automobile search or examine witnesses at a
suppression hearing. Over the course of the month, the Assistant may argue a sentencing
issue before the Court of Appeals, negotiate a plea agreement with a minor player in a
conspiracy in the hope of using his testimony to convict the conspiracy’s leaders, or
prepare witnesses and mark exhibits for an upcoming trial.
Тук е описано подробно на на английски: http://www.law.harvard.edu/students/opia/docs/guide-fast-track.pdf