Date of dataset: 6/30/2018
Source: PRISM (Probation Record Information System Management) PO-170 Report
Notes: To ensure confidentiality and to protect the identities of individuals on probation, the ages of some individuals in the dataset have been withheld, and marked “N/A”. This is done to avoid possible re-identification through the available demographic information, or stigmatization of a group when they make a substantial percent of a designated population.
Number of records with ages withheld: 0

The Alameda County Probation Department (ACPD) collects information on all juveniles referred to the department and records this in PRISM (Probation Record Information System Management). Several reports are built into the PRISM system that allow ACPD staff to extract data for specified time periods. This dataset is derived from the PRISM PO-170 report – the Juvenile Detentions Data Extract. This report contains individual-level information for all youth detained on the date specified. To create this dataset, the report was de-identified and edited to include the most pertinent information.

Data Characteristics and Known Limitations.
• To ensure confidentiality and to protect the identities of individuals on probation, the ages of some individuals in the dataset have been withheld, and marked “N/A”. This is done to avoid possible re-identification through the available demographic information, or stigmatization of a group when they make a substantial percent of a designated population. Please see the “Notes” tab in the public dataset file, which states the number of records with withheld ages in that dataset.
• This data contains all youth who were detained on the date specified. Many youth are booked into Juvenile Hall when arrested and subsequently released without ever spending a night in detention. These youth will be included in this dataset if they were detained at the time of the report, regardless of how long they stayed in Juvenile Hall.

Definition of Terms
• Age Group – age range the client was in on the date of report.
• Facility – the facility or type of detention the youth was in at the time of the report
o Juvenile Hall - youth that were booked into Juvenile Hall (the Alameda County Juvenile Justice Center) and had not been released as of the date of the report. Juvenile Hall houses youth pending Court proceedings while awaiting placement, youth who are ordered detained by the Court, youth who are under the jurisdiction of the Adult Court, and youth on courtesy holds for other jurisdictions.
o Camp Sweeney – youth housed in Camp Wilmont Sweeney on the date of the report. Camp Sweeney is a 24-hour local residential placement for court-ordered commitment male
youth, ages 15 to 18. The program offers treatment, rehabilitation, and education within a
structured living environment as a placement alternative to group homes and the State
Department of Juvenile Justice. CWS is an open setting and not secured by physical barriers.
Residents receive education, vocational training, counseling services, and cognitive
behavioral therapy. Cognitive Family home visits, family reunification, and reintegration into
the community are integral parts of the program.
o Home Supervision – youth under Home Supervision on the date of the report. Home
Supervision is a program offered as an alternative to detention. A minor placed on Home
Supervision by the Court or Probation Officer is required to sign a written promise (contract)
that he/she understands and will observe the specific conditions of the program. The
conditions may include curfew, school attendance, requirements related to the protection
of the minor, the person or property of another, or to the minor's appearance at Court
hearings.
o GPS Monitoring - youth on Global Positioning System monitoring devices on the date of the
report. Global Positioning System is a program offered as an alternative to detention. GPS
monitoring devices are used for minors released from Juvenile

Date of dataset: 6/30/2018
Source: PRISM (Probation Record Information System Management) PO-234 Report
Notes: To ensure confidentiality and to protect the identities of individuals on probation, the ages of some individuals in the dataset have been withheld, and marked “N/A”. This is done to avoid possible re-identification through the available demographic information, or stigmatization of a group when they make a substantial percent of a designated population.
Number of records with ages withheld: 24

The Alameda County Probation Department (ACPD) collects information on all juveniles referred to the department and records this in PRISM (Probation Record Information System Management). Several reports are built into the PRISM system that allow ACPD staff to extract data for specified time periods. This dataset is derived from the PRISM PO-234 report. This report provides a dataset of all youth that have an assigned Probation Officer. Cases include formal supervision, informal supervision, intake, and investigations. The report provides a one-day snapshot of individual-level data on each youth along with demographic information. To create this dataset, the report was de-identified and edited to include the most pertinent information.

Data Characteristics and Known Limitations
• To ensure confidentiality and to protect the identities of individuals on probation, the ages of some individuals in the dataset have been withheld, and marked “N/A”. This is done to avoid possible re-identification through the available demographic information, or stigmatization of a group when they make a substantial percent of a designated population. Please see the “Notes” tab in the public dataset file, which states the number of records with withheld ages in that dataset.
• PRISM is a referral system rather than a case management system, and a youth may have more than one open referral at a time. Therefore, the analyst who creates this report must apply a hierarchy to determine how to count youth with multiple open referrals, since PRISM does not perform this function. The hierarchy employed for this dataset is as follows: Warrant, Placement, Community Supervision, Intake / Investigations, Truancy.

Definition of Terms
• Age Group – age range the client was in on the date of report.
• Gender – gender of the client as recorded at booking.
• Race Group – race group of client as recorded at booking.
o Asian/Pacific Islander – a person whose ancestry can be identified as Asian Indian, Cambodian, Chinese, Filipino, Japanese, Korean, Laotian, Vietnamese, other Asian, Pacific Islander, Samoan, Guamanian, or Hawaiian.
o Black – a person whose ancestry is any of the black racial groups of Africa.
o Hispanic – a person of Mexico, Puerto Rico, Cuba, Central and South America or other
o Spanish culture or origin regardless of race.
o American Indian – a person whose ancestry is any Native American tribe.
o Other – a person who cannot be linked to any of the general or specific racial/ethnic groups
listed
o White – a person whose ancestry is any of the original peoples of Europe, North Africa, or
the Middle East.

Supervision Type – The type of supervision the youth was on at the time of the report
o Community Supervision – youth on formal supervision and placed in one of the
following units at the time of this report: General Supervision, Community Supervision,
Family Preservation Unit, or Intensive Supervision.
o Intake and Investigation – youth at the intake stage who have been arrested and/or
referred to Probation, as well as youth at the investigation stage who have referrals that
have been petitioned to court and are pre-adjudication at the time of this report. Youth
in the intake and investigation category are not yet on probation.
o Placement – youth placed outside of the home in foster care, a group home, or a
residential treatment center at the time of this report.
o Truancy – youth participating in the District Attorney’s Truancy Mediation Divers

Assessor's Office Secured Roll for 2018/2019. Secured Roll file with ownership names redacted: Assessed property values for the Alameda County residential and commercial properties as of July 1, 2018.

Alameda County home Precincts as of August 2014. Some home Precincts are combined during an election to reduce the number of Precincts.

Parcel Boundaries in Alameda County. Last upload on 2/17/2016.

Date of dataset: 12/31/2018
Source: PRISM (Probation Record Information System Management) PO-216 Report
Notes: To ensure confidentiality and to protect the identities of individuals on probation, the ages of some individuals in the dataset have been withheld, and marked “N/A”. This is done to avoid possible re-identification through the available demographic information, or stigmatization of a group when they make a substantial percent of a designated population.

Number of records with ages withheld: 130

The Alameda County Probation Department (ACPD) collects information on its clients and records this in the Adult Probation System. ACPD staff run reports from this system that extract data for specified time periods. This dataset is derived from PRISM PO-216 report – Adults on Probation Data Extract 2. This report contains individual-level information for all adults on the ACPD caseload on date specified. To create this dataset, the report was de-identified and edited to include the most pertinent information.

Data Characteristics and Known Limitations
• To ensure confidentiality and to protect the identities of individuals on probation, the ages of some individuals in the dataset have been withheld, and marked “N/A”. This is done to avoid possible re-identification through the available demographic information, or stigmatization of a group when they make a substantial percent of a designated population. Please see the “Notes” tab in the public dataset file, which states the number of records with withheld ages in that dataset.
• Individuals may be on more than one type of supervision at a time. In these cases, the following hierarchy is used to determine their case type for the purposes of this report:
o Mandatory Supervision
o Post Release Community Supervision
o Other Status
o Formal Probation
• The APS system has no built-in verification for address, city, or zip code. Therefore, address entries may be subject to human error or may be left blank. Current upgrades to the department’s case management system will not allow incorrectly entered or blank address entries. Initial dataset releases will not contain residential city or zip code information.

Definition of Terms
• Age Group – age range the client was in on the date of report.
• Case Type – type of supervision case the individual is on at the time of the report
o Formal Probation – A term of community supervision ordered by the court as all or part of an individual’s sentence for a felony or misdemeanor conviction. An individual on formal probation is supervised by a probation officer and ordinarily must meet with the officer anywhere from once a week to once a month. A formal probation term in Alameda County is typically three to five years.
o PRCS (Post Release Community Supervision) – A term of community supervision served by individuals released from the California Department of Corrections and Rehabilitation after serving a prison commitment for non-serious, non-violent, or non-high-risk sex offenses (regardless of prior convictions). An individual on PRCS is supervised by a probation officer and serves a term of 12 to 36 months. Prior to the Public Safety Realignment Act of 2011 (AB109), the PRCS population was supervised by state parole.
o Mandatory Supervision – A term of community supervision defined by Penal Code Section 1170(h). Individuals on Mandatory Supervision have been convicted of felony crimes that are not eligible for incarceration in prison and instead are sentenced by the Court to serve their sentence in county jail or to “split” the sentence between jail custody and a separate period of Mandatory Supervision. An individual on Mandatory Supervision is supervised by a probation officer and serves a term determined by the Court.
o Other Status – An individual on the Alameda County Probation Department caseload who is in the process of being transferred to or from another county per Penal Code Section 1203.9 or who is being supervised in a diffe

Date of dataset: 12/27/2018
Source: PRISM (Probation Record Information System Management) PO-234 Report
Notes: To ensure confidentiality and to protect the identities of individuals on probation, the ages of some individuals in the dataset have been withheld, and marked “N/A”. This is done to avoid possible re-identification through the available demographic information, or stigmatization of a group when they make a substantial percent of a designated population.
Number of records with ages withheld: 31

The Alameda County Probation Department (ACPD) collects information on all juveniles referred to the department and records this in PRISM (Probation Record Information System Management). Several reports are built into the PRISM system that allow ACPD staff to extract data for specified time periods. This dataset is derived from the PRISM PO-234 report. This report provides a dataset of all youth that have an assigned Probation Officer. Cases include formal supervision, informal supervision, intake, and investigations. The report provides a one-day snapshot of individual-level data on each youth along with demographic information. To create this dataset, the report was de-identified and edited to include the most pertinent information.

Data Characteristics and Known Limitations
• To ensure confidentiality and to protect the identities of individuals on probation, the ages of some individuals in the dataset have been withheld, and marked “N/A”. This is done to avoid possible re-identification through the available demographic information, or stigmatization of a group when they make a substantial percent of a designated population. Please see the “Notes” tab in the public dataset file, which states the number of records with withheld ages in that dataset.
• PRISM is a referral system rather than a case management system, and a youth may have more than one open referral at a time. Therefore, the analyst who creates this report must apply a hierarchy to determine how to count youth with multiple open referrals, since PRISM does not perform this function. The hierarchy employed for this dataset is as follows: Warrant, Placement, Community Supervision, Intake / Investigations, Truancy.

Definition of Terms
• Age Group – age range the client was in on the date of report.
• Gender – gender of the client as recorded at booking.
• Race Group – race group of client as recorded at booking.
o Asian/Pacific Islander – a person whose ancestry can be identified as Asian Indian, Cambodian, Chinese, Filipino, Japanese, Korean, Laotian, Vietnamese, other Asian, Pacific Islander, Samoan, Guamanian, or Hawaiian.
o Black – a person whose ancestry is any of the black racial groups of Africa.
o Hispanic – a person of Mexico, Puerto Rico, Cuba, Central and South America or other
o Spanish culture or origin regardless of race.
o American Indian – a person whose ancestry is any Native American tribe.
o Other – a person who cannot be linked to any of the general or specific racial/ethnic groups
listed
o White – a person whose ancestry is any of the original peoples of Europe, North Africa, or
the Middle East.

Supervision Type – The type of supervision the youth was on at the time of the report
o Community Supervision – youth on formal supervision and placed in one of the
following units at the time of this report: General Supervision, Community Supervision,
Family Preservation Unit, or Intensive Supervision.
o Intake and Investigation – youth at the intake stage who have been arrested and/or
referred to Probation, as well as youth at the investigation stage who have referrals that
have been petitioned to court and are pre-adjudication at the time of this report. Youth
in the intake and investigation category are not yet on probation.
o Placement – youth placed outside of the home in foster care, a group home, or a
residential treatment center at the time of this report.
o Truancy – youth participating in the District Attorney’s Truancy Mediation Diver