Idaho Statistical Analysis Center

The Idaho Statistical Analysis Center (ISAC) resides within the Planning, Grants and Research Department of the Idaho State Police. The overall purpose of ISAC, as established by the U.S. Bureau of Justice Statistics, is the systematic collection, analysis, and dissemination of statistics related to crime, illegal drugs, victim services, and the administration of justice. The purpose of our website is to provide criminal justice agencies and community organizations access to ISAC publications and other statistical information which can be used for development and analysis of policies, operations and programs.

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ISAC Releases Update to Idaho Crime Victim Services Dashboard
March 27, 2024

The Idaho Statistical Analysis Center (ISAC) is pleased to announce the release of the annual update to the Idaho Crime Victim Services Dashboard.

A collaboration between ISAC and the Idaho Council on Domestic Violence and Victim Assistance (ICDVVA), the Idaho Crime Victim Services Dashboard compiles, analyzes, and visualizes multiple sources of data that focus on the experience of crime victims in Idaho’s justice system. It is intended to be a resource for state and local policymakers, victim service agencies and program managers, and the general public to better understand the full scope of crime and victimization in the state. The dashboard currently includes data on community demographics, crime victims who reported their victimization to law enforcement, and crime victims served by a federally funded victim service program in Idaho.

Some highlights from this year’s update:

  • The number of victims served by federally funded victim service programs fell 5% from 2021 (55,557 victims served) to 2022 (52,976), after rising 88% between 2017 and 2021 (from 29,503 to 55,557). Similarly, the amount of federal funding awarded to these programs in 2022 fell 13% (from $16 million in 2021 to $13.9 million in 2022), after rising 87% between 2017 and 2021 (from $8.5 million to $16 million).
  • The rate of victims served by federally funded victim service programs in 2022 was much higher than the rate of victims who reported the crime to law enforcement. In 2022, the rate of sexual assault victims who received federally funded victim services (4.7 victims served per 1,000 residents) was 4.1 times higher than the rate of those who reported to law enforcement (1.1). For intimate partner violence victims, that rate was 5.0 times higher (16.1 victims served per 1,000 residents, compared to 3.2 reported to law enforcement).
  • Based on regional need scores calculated by ISAC, southern and western Idaho ranked as the areas of the state with the highest overall need for victim service programs based on community demographics and reported crimes.
    • Public Health District (PHD) 3, which is made up of six counties in southwestern Idaho and includes Canyon County, had the highest overall need score of the seven PHDs in 2022, and had the highest need scores in all five categories (Underserved Populations, Child Victims, Domestic/Family Violence, Sexual Assault, and Other Crime). In 2022, PHD 3 ranked 2nd in grant funding for direct victim services distributed to the district.
    • Canyon County had the highest need score among Idaho’s 44 counties in 2022 and ranked 2nd in grant funding received. The high need score was largely driven by a higher rate of human trafficking victims known to law enforcement in Canyon County than in any other county.
    • Twin Falls County had the highest need score in the Domestic/Family Violence category and ranked 4th in grant funding in 2022.
    • Valley County had the highest need score in the Sexual Assault category, and the 2nd highest overall need score, but was one of 21 counties that did not have a federally funded victim service program headquartered within the county’s borders in 2022.

Explore more data on victimization and victim services here.

ISAC Releases Inaugural Research Brief on Drug and Alcohol Related Crime
March 6, 2024

The Idaho Statistical Analysis Center (ISAC) is pleased to announce the release of the first issue of its new research brief series on drug and alcohol related crime in Idaho. Drug & Alcohol Related Crime Trends, 2013 – 2022 presents analysis of data from the Idaho Incident-Based Reporting System (IIBRS), focusing on the 10 most recent years of available data (2013 to 2022). The brief includes state-level data analysis, as well as county-level arrest rates by drug type for 2022.

Some key findings:

  • Although the rate of total drug and alcohol offenses fluctuated slightly between 2013 (17.6 offenses per 1,000 residents) and 2022 (18.2), the drug offense rate increased 31% during that time (from 10.3 to 13.5) while the alcohol offense rate decreased 36% (from 7.3 to 4.7).
  • In 2022, a quarter (25%) of all offenses reported to IIBRS by law enforcement were drug or alcohol offenses, up from 14% in 2013 and 9% in 2005 (the lowest point in that 18-year span).
  • Demographic data indicates that drug and alcohol arrestees tended to be older in 2022 (average arrestee age was 33.6 years old) than in 2013 (28.6 years old).
  • A larger share of arrestees were women (30% in 2022, compared to 27% in 2013) and racial/ethnic minorities (68% of arrestees were White and non-Hispanic in 2022, compared to 76% in 2013).
  • The percentage of person/property crime offenders suspected of being under the influence of alcohol and/or drugs during the commission of those crimes rose to about 10% in 2022 (up from 7% in 2013).

The full research brief is available in the ISAC Publication Library. Additionally, readers can explore the full dataset using ISAC’s Crime in Idaho Data Dashboard.

ISAC Expands Crime in Idaho Data Dashboard
February 13, 2024

The Idaho Statistical Analysis Center (ISAC) is pleased to announce the final planned expansion of the Crime in Idaho Data Dashboard, which displays data collected from state and local law enforcement agencies on reported crime in Idaho since 2005.

Updates include:

  • Demographic data on offenders and arrestees for all crime types and special topics
    • Rates of offenders and arrestees at the state and county levels
    • Demographics, type of arrest, and other characteristics of offenders and arrestees
  • A new special topic page on crime committed by juveniles

Some state-level highlights from the expanded data:

  • Although arrest rates for most crime types have been trending down since 2005, two categories (property crime, juvenile crime) saw arrest rate increases between 2021 and 2022. The arrest rate for property crime increased 2.8% from 2021 to 2022, while the juvenile arrest rate increased by 12.2%.
  • In 2022, offender demographics were similar across crime types. Offenders tended to be male and between 18 and 44 years old. However, the characteristics of most property crime offenders are unknown, possibly because many property crimes (such as burglary) occur when the victim is not present and thus cannot give law enforcement a description of the offender.
  • The percentage of offenders arrested largely mirrors offense clearance data. For example, in 2022, 35% of offenders that committed a Crime Against Persons were arrested, which is consistent with the 38% of Crimes Against Persons that were cleared by arrest that same year.
  • Type of arrest refers to whether the arrestee was physically arrested (i.e., booked into jail) or was given a citation/court summons and released. Arrest type varied by crime type in 2022, ranging from 49% physical arrests (property crime) to 75% (Group B crime). Additionally, there was variability in arrest type within crime categories. For example, the percentage of offenders physically arrested for sex offenses (77%) and intimate partner violence (73%) was higher than the total percentage of offenders physically arrested for any person crime (66%).

This data and more, including county-level data on these topics, can be viewed on the dashboard.

The Crime in Idaho Data Dashboard allows users to explore much of the data housed in the Idaho Incident-Based Reporting System, Idaho’s vast repository of law enforcement data on criminal incidents that occur within Idaho and the same data set that drives the annual Crime in Idaho report series. Agency, county, and state data from between 2005 and 2022 can be visualized in one place, allowing for customizable views and quick trend analysis. Data updates are provided annually on or around July 1st. This project is a collaborative effort between ISAC and the Idaho Uniform Crime Reporting Program, both of which are components of the Idaho State Police.

ISAC Releases Assessment of Nampa Family Justice Center Grant-Funded Program
January 30, 2024

The Idaho Statistical Analysis Center (ISAC) is pleased to announce the release of the results of its assessment of the Nampa Family Justice Center’s (NFJC) Byrne JAG-funded program.

Serving Vulnerable Victims of Crime: An Assessment of the Nampa Family Justice Center’s Byrne JAG Programs highlights a current Byrne JAG award that has enabled NFJC to expand services to vulnerable crime victims in Canyon County and beyond, including children, elders, and Spanish speakers. The report covers a 3-year period from October 2020 to September 2023, but focuses on one 12-month period from October 2021 to September 2022.

In that 12-month period, NFJC provided Byrne JAG-funded services to 254 clients, 76% of whom recorded two or more services in that span (client retention was one measure of short-term program success). Adult clients who participated in a group counseling program called Making Sense of Your Worth reported a 63% increase in overall self-worth after participating in the program. These clients also reported that levels of all individual positive emotional and self-worth traits increased or stayed the same after program participation, and all negative traits decreased. Finally, youth who attended Camp Hope Idaho in 2021 reported a 10% increase on the Children’s Hope Scale and a 6% increase in the associated Resilience Scale, gains that outpace the national average.

The Edward Byrne Memorial Justice Assistance Grant (Byrne JAG) Program is a federal formula grant program that provides funding to states and local governments for programs in seven broad areas of the criminal justice system. NFJC’s program is funded through a Byrne JAG sub-award administered by the Idaho State Police’s Planning, Grants & Research Department (the State Administering Agency for Idaho’s Byrne JAG funds) under the “Prevention and Education” and “Crime Victim and Witness” program areas.

The full report is available in the ISAC Publication Library.

ISAC Awarded Grant to Study School Resource Officers; Wins Two National Publication Awards (September 12, 2023)

ISAC has been awarded a research grant from the U.S. Bureau of Justice Statistics (BJS) to study the prevalence and effectiveness of school resource officers (SROs) in Idaho, as well as two Douglas Yearwood National Publication Awards from the Justice Research and Statistics Association (JRSA; now the Justice Information Resource Network).

Study of School Resource Officers

The grant will fund a 1-year ISAC research project that will be carried out in partnership with a state-level working group comprised of the Idaho Department of Juvenile Corrections, the Idaho State Department of Education, and the Idaho Office of Drug Policy. ISAC plans to collect and analyze data on schools with and without access to an SRO to determine SRO impacts on school safety, juvenile offenses and disciplinary actions, and the role of SROs on campus. This project will provide stakeholders with an in-depth look at the prevalence and effect of SROs around Idaho and will attempt to discern best practices for leveraging SROs to enhance school security and decrease juvenile crime and delinquency while increasing academic performance. The expected publication date of the final report is fall 2024.

The grant was awarded under BJS’s State Justice Statistics (SJS) program, a competitive federal research grant to enhance states’ capacity to develop and carry out innovative and timely justice system research projects. Only state Statistical Analysis Centers are eligible for funding under the SJS program, positioning ISAC as the only entity in Idaho eligible for this funding. 2023 marks the seventh straight year ISAC has earned an SJS award; ISAC has received SJS awards in 23 of the last 24 years. Historically, the SJS program funds between 30 and 40 research proposals per year.

Douglas Yearwood National Publication Awards

ISAC has been awarded two 2023 Douglas Yearwood National Publication Awards from the Justice Research and Statistics Association (JRSA; now the Justice Information Resource Network). JRSA awards four Yearwood Awards annually in recognition of outstanding research communication by Statistical Analysis Centers (SACs). The awards are broken into two divisions based on SAC staff size (small SACs have 1-4 employees; large SACs have five or more employees), and two awards are made in each division (one for statistical/management reports and one for policy/research reports).

ISAC swept the Small SAC division. Crime Victimization in Idaho: An Overview of Available Data won for Best Statistical/Management Report by a Small SAC, while Offending Patterns Among Domestic Violence Offenders in Idaho won for Best Research/Policy Report by a Small SAC. As part of the award ceremony, ISAC made short presentations on each of these reports to a national audience at the 2023 Symposium on Justice Information Technology, Policy, Research, and Practice hosted by SEARCH, JRSA, and the National Criminal Justice Association held during the last week of July 2023 in Long Beach, CA.

The awards are the fifth and sixth Yearwood Awards ISAC has won since the award was created in 1986, and the first time that ISAC has swept the Small SAC division.

ISAC Staff

Thomas Strauss, MPA
ISAC Director & Principal Research Analyst
Phone: (208) 884-7047

Kourtnie Rodgers
Senior Research Analyst

Phone: (208) 884-7044

This Web site is funded through a grant from the Bureau of Justice Statistics, Office of Justice Programs, U.S. Department of Justice. Neither the U.S. Department of Justice nor any of its components operate, control, are responsible for, or necessarily endorse, this Web site (including without limitation, its content, technical infrastructure, and policies, and any services provided).

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