A Former Bucks County Juvenile Probation Officer has admitted selling cocaine, tipping off drug dealers and stealing money from teens under her supervision. 36-year-old Susan Neubuck of Warminster pleaded guilty to drug offenses and hindering an investigation Wednesday in Bucks County Court.  Prosecutors say at one point she tried to expose an undercover police officer to other drug dealers by inviting the officer to the Big Head’s Beef and Ale bar in Warminster early this year, where she planned to point him out to the other dealers, but he declined the offer because he suspected she wanted to expose him.  Authorities say there is no evidence that she was selling drugs to the juvenile offenders she was supervising.