Integrated Criminal Justice Information System

ICJIS facilitates the integration of disparate information systems among Maricopa County criminal justice departments, for the purpose of reducing expenses resulting from non-integrated criminal justice systems.

  1. Mandated Mission
  2. Key Stakeholders
  3. Governance
  4. Outside Partners
  5. History
  6. Accomplishments

Mandated Mission

The mandated mission of ICJIS is to facilitate the integration of disparate information systems among Maricopa County criminal justice departments, for the purpose of reducing expenses resulting from non-integrated criminal justice systems. At the time, non-integrated system expenses included:

  • Criminal Justice departments not sharing data of common interest
  • Difficulties in planning and assessing the effectiveness of criminal justice programs due to the lack of comprehensive data
  • Duplicate and redundant data entry and data collection
  • Failure to use a unique common identifier for incidents and offenders
  • Incomplete and untimely data collection using paper based processes
  • Inconsistencies between paper files and computer databases within and between agencies
  1. Justice Web Interface
  2. Pre-Booking 2.0
  3. Internal Applications

The Justice Web Interface (JWI) is a law enforcement and criminal justice portal developed and owned by Maricopa County.

Data Access / Not Data Storage

The JWI does not store data; it provides access to over 265 legacy data sources along with many integrated data sources. JWI access to data sources is used to assemble related information and photos that can be rendered into an easy to read format for judges, probation officers, investigators, police officers and investigators.


JWI development is very closely tied to the Arizona Criminal Justice Information System (ACJIS) policies and benefits from an open dialogue between the state and the agencies, which are licensed to use the system. Now JWI has expanded its reach into interstate and federal resources and has become a universal application within Maricopa County for criminal justice information and research.


JWI is enhanced regularly by internal Maricopa County departments as well as external agencies licensed to use and maintain the application.

By agreement and practice, the majority of enhancements to JWI by outside entities are shared with internal Maricopa County users. This sharing of enhancements has served Maricopa County well, saving money, time and resources.

Examples of shared enhancements include:

  • Additional data sources and data rendering into CHD
  • Graphical and Night Vision interface improvements
  • Mobile Device capabilities for JWI
  • Parsing and rendering of criminal history data from all 50 states
  • Research for recidivism studies on multiple persons


JWI is licensed by Maricopa County to a number of entities outside of Maricopa County government, including:

Current Maricopa Government agencies using JWI:

Technical Architecture

JWI is a unique, modular "open-sourced" design (depicted below) which is built expressly for use in city, county, state and federal law enforcement and criminal justice environments.

On any given day, JWI is used to:

  • Enter all state and national warrants issued within Maricopa County.
  • Enter and inquire against missing or unidentified persons in the National Crime Information Center (NCIC) database.
  • Gather and assess criminal histories for initial appearance, charging and pre-sentence reports.
  • Register and inquire against stolen items such as guns, vehicles, boats, securities, and articles at the local and national level.
    • Identify subjects using AZ driver's license photos. Motor Vehicle Department Photo is used for tasks ranging from traffic stops to probationer identification to the prosecution of check fraud and identity theft.
  • Register approximately 90% of the sex offenders in the state of Arizona (AZ).


It takes innovative people to keep a fast-growing County like ours, thriving and running efficiently! With more than 13,000 employees, Maricopa County’s dedicated team members are the heart of our vibrant organization! Watch the video and see why employees love working here.

  1. View Postings