What the hell is a "SDUSM" ? And why must a great deal of folks have to use initials for something rather than actually use the word or phrase? Is it laziness or just trying to be "cool"?
Charlie,
SORRY. I guess that I should have "spelled out": SPECIAL DEPUTY UNITED STATES MARSHAL, i.e., NOT a US CIVIL SERVICE appointee but instead "a local US Marshal's District hire",
apologies offered, satx