I am not, and have never been, a U.S. PU. However, I work closely with them and I can speak from experience in several districts.
Their duties can vary a great deal from district to district and it is guided by the Chief of the U.S. Probation in each district.
Duties can vary a bit, depending on whether you are pretrial or not. Regardless, a good deal of the duties are more social-work oriented.
Pretrial Officers will do work-ups on new arrests and make suggestions on detention and such. They check into the veracity of the subjects statements, regarding criminal history, financial history, etc. Theyt also supervise those subjects released on bond.
Other POs make compose presentence reports. These are length reports on a subjects criminal hostory, the offense level of their current charges, as well as personal histories. These presentence reports guide the judge for sentencing.
There are other POs who supervise those subjects who are on supervised release and parole (whish is now defunct).
As I said, the way things are done can vary greatly from district to district. In some districts, the U.S. POs are out helping us serve warrants on the subjects that they supervise... being proactive and enforcement-oriented. More often than not, however, they tend to be more hands-off... requesting arrest warrants when their subjects violate and then seeing the subject after we have gone out and arrested them.
We bring evil things to evil people, kicking in a door near you!
."In theory, there is no difference between theory and practice. But,
in practice, there is."
- Jan L.A. van de Snepscheut
"The difference between 'involvement' and 'commitment' is like
an eggs-and-ham breakfast: the chicken was 'involved' - the pig
was'committed'."
-unknown
Working on a PhD in CQB one doorway at a time.
When the wolf attacks, he will find not all who run with the flock are sheep!