Done and Dusted

[sianbanham]

Where does the phrase 'Done and Dusted' originate from?

[macrm1980]

From looking at a couple dozen web sites with your phrase as the search target, I would guess that the term means "finished with" or "completely done". Just a guess, but maybe it is a housekeeping term--put away the junk etc. and then get out the vacuum cleaner so you can say that the house has been "done and dusted"! Or, Maybe it is a law enforcement term describing a crime scene after the forensic people finished dusting for prints.