As part of the Survey of State Criminal History Information Systems, 2018, SEARCH asked states about their practices related to using mobile fingerprint technology (MFT) and rapid identification (Rapid ID) services. The survey responses regarding these practices are summarized below.
Mobile Fingerprint Technology
Many local law enforcement and public safety agencies, courts, and correctional and detention facilities use mobile technology to capture and transmit fingerprints to facilitate inquiries of their state criminal history records repository and related justice information systems. These inquiries are used to:
- establish positive identification of subjects whose identity is unknown or questionable, and
- verify the identity of subjects at critical decision points in the justice enterprise.
These remote and hand-held devices allow an officer or other criminal justice official to capture one or more fingerprints to positively verify or establish the identity of a subject through state Automated Biometric Identification Systems (ABIS) and the FBI’s Next Generation Identification (NGI) System. The devices—which feature fingerprint scanners that are typically about the size of a postage stamp—are commonly used by law enforcement for identification purposes during traffic stops, when serving warrants, or during cite-and-release events. Additionally, they can be used to establish the identity of deceased crime or accident victims and victims of disasters. Courts can use them to verify the identity of defendants appearing before them at critical events, such as sentencing, and correctional agencies often employ the technology to verify the identity of inmates at intake, booking, transfer, and release.
As of year-end 2018, 32 states (up from 30 states in the 2016 survey) and the District of Columbia reported using mobile fingerprint technology for remote identification and booking purposes (Figure 1).[1]

In addition to establishing identity with biometric precision, mobile fingerprint readers have other advantages:
- The technology can be used in the field to establish identity without requiring that a subject be transported to a booking facility for fingerprinting. This is especially helpful when subjects are cited and released. Using MFT ensures that the arresting event can be biometrically supported for inclusion in a state’s criminal history repository. Rapid identification of suspects significantly contributes to officer and public safety by enabling the officer in the field to quickly establish the identity of wanted/missing persons and other subjects of interest.
- The technology enables law enforcement to quickly exclude people from consideration when they are incorrectly suspected of being a wanted party or other subject of interest. With MFT, officers can quickly correct a misidentification without having to transport the person to a central booking facility for traditional fingerprinting.
- Remotely capturing fingerprints of arrested subjects is effective during major events, where law enforcement agencies are deployed to ensure public safety. If multiple arrests are made, officers can book and fingerprint subjects in temporary holding facilities without the immediate need to transport them to distant agency detention centers.
- Remote and handheld fingerprint devices are relatively inexpensive and easy-to-use, and do not require the space, computer networking, and other infrastructure required for traditional livescan devices.
Mobile and Rapid ID Implementation: A Pennsylvania Success Story

Rapid Fingerprint Identification (Rapid ID)
Rapid ID also allows authorized users to search the FBI’s Repository of Individuals of Special Concern (RISC), which was introduced in 2011, and is accessible to law enforcement officers nationwide. The search, which is conducted through the FBI’s NGI system, promotes officer safety and situational awareness by providing on-scene access to a national repository of wants and warrants. RISC searches also return data from the NCIC Immigration Violator file, the Known or Appropriately Suspected Terrorists file, and information concerning convicted sex offenders.[3]

States that have deployed Rapid ID conducted over 1.5 million searches in 2018, which produced over 996,000 “hits” or positive identifications.[4] The numbers vary widely from state to state, which possibly reflects variations in how broadly the technology is deployed and the operational context in which it is used. In correctional facilities, for example, MFT and Rapid ID technology is often used to verify the identity of inmates when they enter and exit the facility, and at other points when inmates—
- are transported to appear in court, return from outside medical facilities, or community work details,
- transfer to another unit within the same facility,
- are administered medications, and
- are in other circumstances where positive identification is crucial.
Similarly, probation and parole clients might have their identity regularly confirmed as they seek and receive various services and meet with their case manager.
[1] Becki R. Goggins and Dennis DeBacco, Survey of State Criminal History Information Systems, 2018. (Washington, DC: U.S. Department of Justice, Bureau of Justice Statistics, 2020), Table 10d.
[2] https://www.pachiefs.org/mobile-fingerprint-id
[3] See https://www.fbi.gov/file-repository/repository-for-individuals-of-special-concern-brochure.pdf/view
[4] See Table 10d in the 2018 Survey. A “hit” is a positive database search response to a Rapid ID inquiry that is conducted using a subject’s fingerprints.
About the Authors
Ms. Becki Goggins is Director of Law and Policy at SEARCH. She oversees SEARCH’s work in the areas of criminal history records, development of laws and policies concerning the use of justice information and protection of privacy, implementation of evidence-based practices, and the use of technology to improve justice information sharing.
Mr. Dennis A. DeBacco is a Justice Information Services Specialist at SEARCH. He researches and writes about issues that impact criminal justice information management and policy; organizes conferences and workshops; establishes and supports task forces; conducts surveys on pertinent issues; and provides technical assistance to justice agencies.
Learn more about SEARCH’s work with criminal history records and the surveys we conduct on CHRI issues.
SEARCH staff continue to analyze the results of the 2018 Survey with the intention of making the data more accessible by drafting blogs to explain and provide context for the survey findings. If you have suggestions for topics you would like to see highlighted, or if you have specific questions about survey findings, please contact Becki Goggins (becki@search.org) or Dennis DeBacco (dennis@search.org).