Adult Probation Services



Mary Butler


  • Adult Probation after Court check-in is located:
    • Napa County Hall of Justice
    • 1125 Third Street, 2nd Floor
    • Napa CA, 94559
    • Monday - Friday 8:00am - 4:00pm
  • Adult Community Corrections Service Center Located at:
    • 1125 Third St.
    • Napa CA 94559
    • Monday 8:00am-1:30pm and 3:30pm - 8:00pm
    • Tuesday - Friday 8:00am - 8:00pm
    • Saturday and Sunday 12:00pm - 5:00pm
  • Adult Deferred Entry of Judgement Program is located:
    • Napa County Hall of Justice
    • 1125 Third Street, 2nd Floor
    • Napa, CA 94559 
    • Most Fridays 2:00pm - 5:00pm


Adult Probation Services

Investigations Unit

Five probation officers, experienced in the application of determinate sentencing law, provide departmental representation to the Napa County Courts. The Investigations Unit provides written and oral probation reports also known as pre-sentence investigations for the Napa County Courts. These reports contain information describing the circumstances of a crime, prior criminal history of a defendant, and a recommendation for or against a grant of probation. When a crime is committed and a victim is involved, efforts are made to contact him or her to determine if any restitution may be owed to them and to advise the victim of their legal rights. The report is also utilized by Probation Officers of the Supervision Unit and correctional authorities should the defendant be ordered a psychological evaluation or sentenced to state prison.

General Supervision

Approximately 1300 clients are supervised by approximately five probation officers of the Napa County Probation Department. General Supervision refers to caseloads which commonly consist of drug/alcohol related offenses, assaults, and weapons related crimes. Probationers are required to report to their assigned probation officer as directed by him or her. A typical appointment would include explaining terms of probation, referring clients to community and public resources, establishing restitution, monitoring payment of restitution, counseling, drug and alcohol testing. Other functions include providing written and oral reports to the court, arresting probation violators, and performing probation searches.

Approximately 400 domestic violence offenders are grouped on two caseloads to increase accountability and community/victim protection by providing some of the unique services and treatment these individuals require.

Specialized Caseloads

The Probation Department has established several specialized caseloads that include selected drug/alcohol offenders, gang violence offenders, sex offenders, victim restitution, placement and supervision of offenders ordered to complete residential treatment and/or Drug Court, drug offenders ordered by the court to participate in the Proposition 36/STOP Program. Another specialized and very limited caseload involves the supervision of a limited number of drug offenders in cooperation with other local law enforcement. The offenders described above are seen in the office at least monthly and may be visited in the community unannounced. There are about 400 probationers on these caseloads.

Community Corrections Service Center (CCSC)

The Community Corrections Service Center (CCSC) is a probation program, run by BI, Inc., that is a one-stop shop for intensive supervision, treatment services and if necessary, the sanctioning of offenders.

The Goals of the CCSC are to:

  • Decrease recidivism rate (offenders who go on to commit another crime).

  • Increase safety and security of Napa County by effectively treating offenders both in-custody and in the community.

  • Increase numbers of inmates who successfully reintegrate into the community.

The elements of the program are:

  • Delivers evidence based practices and programming designed to identify and treat the reasons people commit crimes.
  • Tailors programming to meet each offender’s individual criminogenic needs (crime causing).
  • Increases the emphasis on mental health and substance abuse treatment for the adult offender population.
  • Includes a formal quality assurance and performance evaluation component to ensure that the program is having a positive impact on recidivism.