The socialite, 29, is due before Las Vegas Justice of the Peace Joe Bonaventure on Monday, at which time she will formally plead guilty to misdemeanor drug possession and misdemeanor obstructing an officer, says the newspaper, which obtained a copy of Hilton's plea deal.
"We fashioned a resolution which would give us complete control over her future. If she does not toe the line and stay out of trouble she will do one year in the Clark County Detention Center," said Nevada's Clark County District Attorney David Roger.
Should Hilton be arrested during her probation, her plea deal stipulates that she serve a full year behind bars.
"Defendant shall stay out of trouble. Defendant agrees that an arrest for any charge, excluding minor traffic violations for which a citation is issued, shall result in the immediate termination of her probation and the execution of the suspended sentences," reads the deal.
Also demanded: That Hilton successfully complete a substance abuse program, pay a $2,000 fine and perform 200 hours of community service, whose nature and location is to be later determined.
Hilton, who served three weeks in 2007 for violating probation in a drunken driving case, had been charged with felony drug possession after an Aug. 28 arrest in Las Vegas.