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Understanding Risk Assessment in Pretrial Release

By the InMato Family Support TeamUpdated July 28, 202610 min read

A plain-language guide to how risk assessment tools shape pretrial release decisions — and what families can do while waiting for answers.

About this guide

A plain-language guide to how risk assessment tools shape pretrial release decisions — and what families can do while waiting for answers.

In this guide
  1. What Families Need to Know About Pretrial Risk Tools
  2. The Problem Risk Assessment Tools Were Designed to Solve
  3. How Scoring Models Actually Work
  4. The Public Safety Assessment
  5. The Virginia Pretrial Risk Assessment Instrument
  6. The Colorado Pretrial Assessment Tool
  7. The Ohio Risk Assessment System
  8. The Pretrial Justice Institute's Work
  9. What Families Can Do During the Pretrial Period
  10. How Risk Scores Interact With Bail Hearings
  11. Criticisms, Limitations, and Ongoing Reform
  12. What Families Ask Most Often
  13. The Future of Pretrial Assessment
  14. About InMato LLC
  15. Get Started with InMato LLC
  16. Related Articles

01What Families Need to Know About Pretrial Risk Tools

When someone is arrested, the hours that follow are among the most disorienting a family can experience. Courts must decide quickly whether that person can return home before trial, and increasingly, that decision is shaped by data. Understanding how risk assessment tools are used in pretrial release decisions matters not just to defense attorneys and policymakers — it matters to every family trying to figure out what comes next and how to help.

02The Problem Risk Assessment Tools Were Designed to Solve

Before algorithmic tools entered the picture, pretrial release decisions depended almost entirely on judicial discretion and cash bail schedules. Judges made fast decisions with limited information, and outcomes were wildly inconsistent across courtrooms. A person charged with the same offense could spend weeks in jail simply because they appeared before a different judge on a different day.

The cash bail system compounded that inconsistency by tying freedom directly to wealth. Someone with money could pay and go home. Someone without money stayed locked up — not because they were more dangerous or more likely to flee, but because they were poorer. Reformers argued for years that this created two systems of justice running in parallel, separated by a bank account balance.

Risk assessment instruments emerged as one proposed remedy. The theory was straightforward: replace arbitrary discretion with structured, evidence-based scoring that could predict two things — the likelihood a person would return for their court date and the likelihood they would be arrested again before trial. Advocates hoped these tools would reduce both unnecessary detention and genuine public safety risks.

03How Scoring Models Actually Work

Most pretrial risk tools pull from a defined set of variables drawn from a defendant's criminal history and current charge information. Common factors include the number of prior arrests, whether the person has any prior failures to appear in court, the severity of the current charge, and the person's age at first contact with the criminal justice system. Notably, most validated tools explicitly exclude race and income as direct inputs — though critics argue those variables enter indirectly through others like neighborhood or employment.

The scoring process produces a numeric result, sometimes a simple total and sometimes a categorical tier like low, moderate, or high. Judges then receive that score as a recommendation — detain, release with supervision, or release without conditions. The critical point is that the score is advisory, not binding. No algorithm by itself orders a person released or held.

Different instruments use different methodologies. The Arnold Foundation's Public Safety Assessment, used in many jurisdictions, weights nine factors and generates two separate scores for failure to appear and new criminal activity. The Virginia Pretrial Risk Assessment Instrument uses a seven-factor regression model. The Colorado Pretrial Assessment Tool incorporates slightly different weighting. Comparing results across tools is not straightforward because each was validated against different populations in different jurisdictions.

04The Public Safety Assessment

The Public Safety Assessment, developed by what is now Arnold Ventures, gained wide adoption in the 2010s after jurisdictions including New Jersey, Kentucky, and several large counties implemented it at scale. It scores defendants on nine factors, all drawn from publicly available court records, and generates a score from one to six for both failure to appear and new criminal activity, plus a separate flag for violent new criminal activity.

Proponents of the PSA point to New Jersey's implementation as evidence that the tool can reduce pretrial detention without dramatically increasing crime. New Jersey substantially reduced its jail population following reforms that paired the PSA with significant changes to how judges set conditions of release. Opponents note that any outcome improvements in New Jersey resulted from a combination of factors, not the tool alone, and that the PSA's predictive accuracy varies considerably when applied to populations different from those on which it was validated.

The tool has also drawn civil rights criticism from both the left and the right. Some criminal justice advocates argue that any system built on arrest history bakes in existing racial disparities because Black and Latino individuals are arrested at higher rates regardless of underlying behavior. Some libertarian critics object that algorithmic scores create a veneer of scientific neutrality over what is still a prediction about behavior a person has not yet engaged in.

05The Virginia Pretrial Risk Assessment Instrument

Virginia's tool, often called VPRAI, has been in use since the early 2000s, making it one of the longer-standing pretrial risk instruments in the country. It scores defendants on eight factors, including current charge type, pending charges at arrest, prior failure to appear within the past two years, prior failure to appear beyond two years, prior misdemeanor convictions, prior felony convictions, two or more prior sentences of incarceration, and employment or residence stability. Virginia's model explicitly incorporates a measure of community ties, which many other tools omit.

Pretrial services officers in Virginia administer the instrument at the point of arrest, before a bail hearing occurs. The resulting score goes directly to the magistrate or judge along with the officer's recommendation. Judges are not required to follow the recommendation but must document on the record when they depart from it significantly. That documentation requirement creates accountability without eliminating judicial discretion entirely.

Virginia's instrument has been praised for its transparency — the factors are clearly defined and available publicly — and criticized for the employment and residence stability component, which critics argue disadvantages people experiencing homelessness or those working in informal or seasonal labor markets. These are legitimate concerns that the criminal justice community continues to debate, and no instrument has resolved them fully.

06The Colorado Pretrial Assessment Tool

Colorado developed its tool partly in response to concerns that other instruments did not travel well across different populations. The CPAT was built using Colorado-specific data and validated on Colorado defendants, an approach that its developers argued would produce stronger local predictive accuracy than importing a model from a different state's justice population.

Colorado's instrument includes factors similar to other tools — prior criminal history, pending charges, age — but places particular weight on the specific characteristics of the current charge. Violent felony charges trigger different scoring pathways than property crimes or drug offenses. The tool also incorporates an interview component in some jurisdictions, allowing pretrial services staff to verify information that cannot be confirmed through records alone.

The CPAT illustrates an important principle: a tool validated on one population may not perform equally well when exported to another. Jurisdictions that adopt risk assessment instruments without local validation studies are essentially assuming that prediction patterns in another state's data apply to their community. That assumption has generated a steady body of academic criticism within the criminal justice research literature.

07The Ohio Risk Assessment System

Ohio built an entire suite of risk instruments across different decision points in the criminal justice process, with the pretrial component forming one layer of a broader structure that extends through supervision and case planning. The Pretrial Assessment Tool within ORAS scores defendants across six domains and produces a score used to recommend either release or detention and, if release, the intensity of supervision conditions.

Ohio's system is notable for the volume of local validation work the state has conducted. Researchers affiliated with the University of Cincinnati and other institutions have published peer-reviewed studies examining ORAS's predictive validity across different subgroups and over time. That body of evidence makes Ohio's instrument among the more thoroughly studied in the country, though it also makes clear that no tool is uniformly accurate across all demographic groups.

The supervision conditions recommended alongside ORAS scores range from unsupervised release to electronic monitoring to daily check-in requirements. Courts and pretrial services agencies retain discretion over which conditions apply, but the scoring framework provides a common language for those decisions. Families navigating the Ohio system may encounter supervision requirements they have never encountered before, and understanding the instrument's role helps make those conversations with attorneys more productive.

08The Pretrial Justice Institute's Work

The Pretrial Justice Institute has spent decades pushing for evidence-based pretrial practice, and its research and training work has shaped how many jurisdictions think about risk instruments. The organization's position has evolved over time — it moved from enthusiastic advocacy for risk tools to a more cautious stance, ultimately acknowledging that risk instruments alone are not sufficient to produce equitable outcomes without broader structural reform.

That shift is significant. It reflects a growing consensus in the criminal justice research community that the effectiveness of any risk tool depends heavily on how it is implemented, what discretion judges retain, what resources exist for supervision and support, and whether the jurisdiction has committed to reducing incarceration or is using the tool to justify existing detention patterns. A risk score placed into a system still optimized for detention often produces detention, regardless of what the score recommends.

The Institute's training work covers not just the mechanics of instruments but the procedural justice questions surrounding them — whether defendants understand what the score is, how it was generated, and what rights they have to contest it. Transparency to defendants and their families is an area where practice still lags considerably behind the aspiration.

09What Families Can Do During the Pretrial Period

Families often feel completely helpless during the period between arrest and a bail hearing. The reality is that there are specific, concrete steps that can help. First, locate your loved one. County jail inmate search tools exist for most jurisdictions, and InMato's free search covers 289 county jail systems across 14 states — no account required, and the search is always free with no time limit. Knowing exactly where someone is held is the necessary first step before anything else is possible.

Once you have located your loved one, get official contact and deposit information directly from the facility. The jail commissary deposit process matters because it puts money on an account your loved one can use for phone calls, hygiene products, and other necessities while awaiting their hearing. InMato connects families to official, licensed providers only — never imitation sites or lookalike payment pages — and InMato never touches user money. Deposits go directly through the official facility provider's secure system.

A good bail bond guide will tell you that bail is not always the fastest or right path, especially if a risk assessment score has recommended release. Talk to a public defender or a licensed bail bond agent about what the judge is likely to consider given the score and the charge. InMato+ provides bail bond and attorney referrals alongside real-time case tracking and court date alerts at $19.99/month per loved one, with self-service cancellation anytime, so families aren't left guessing about what happens next.

10How Risk Scores Interact With Bail Hearings

The relationship between a risk score and a bail hearing is more complicated than it appears. In theory, a low risk score should produce a recommendation for release without conditions or with minimal conditions. In practice, judges retain full discretion and may depart from the recommendation based on the nature of the charge, victim safety concerns, prosecutorial arguments, or factors not captured in the instrument.

Prosecutors in many jurisdictions are permitted to present evidence at bail hearings that goes beyond the risk score. They may argue that local conditions, specific circumstances of the offense, or the defendant's history in ways not captured by the instrument's factors justify detention or high bail. Defense counsel can present countering information about community ties, employment, and family support. Families who can attend the hearing and who have gathered documentation of stable ties to the community can meaningfully support that process.

Understanding how to find someone in jail and then getting documentation together before the hearing are tasks families can accomplish in the hours after an arrest. InMato's county jail inmate search is designed to reduce the time that step takes, giving families more hours to do the things that actually matter — finding legal representation, gathering documentation, and making sure their loved one can communicate with them.

11Criticisms, Limitations, and Ongoing Reform

The academic and policy debate around pretrial risk tools shows no sign of settling. The core statistical critiques center on predictive accuracy across demographic groups. Several widely cited studies, including work published by ProPublica analyzing the COMPAS instrument, found that the tool produced systematically different false positive rates for Black defendants compared to white defendants when predicting recidivism. Instrument developers disputed the framing, but the study accelerated a broad conversation about what fairness in algorithmic risk assessment actually means.

There is also the question of what risk tools actually predict. Failure to appear is partly a function of circumstances — transportation access, work obligations, confusion about court dates — not solely a measure of intent or character. Jurisdictions that have paired risk tools with court date reminder systems have seen failure-to-appear rates drop substantially, suggesting that some of what instruments flag as individual risk is actually a systemic service gap that can be remedied without detention.

Criminal justice reform advocates across the political spectrum increasingly argue that the pretrial period itself needs restructuring more fundamentally than any tool can accomplish on its own. Reducing the time between arrest and hearing, improving access to counsel at first appearance, building out community supervision infrastructure, and ensuring that defendants understand their legal rights throughout the process are structural changes that instruments cannot substitute for. Risk tools are one data point in a complex system, not a solution to that system's deeper inequities.

12What Families Ask Most Often

Families frequently ask whether they can see the risk score that was generated for their loved one. In many jurisdictions, the score is part of the pretrial report that defense counsel receives. Defendants and their attorneys generally have the right to review the report and, in some jurisdictions, to challenge specific factual inputs if they are incorrect. If an arrest history record contains an error — a common problem — that error may be feeding the score. Defense attorneys can sometimes get scores corrected or suppressed when underlying data is demonstrably wrong.

People also ask about jail booking alerts — specifically, whether they will be notified if their loved one is transferred to another facility or released. Many facilities do not provide automatic notification to families. InMato+ includes booking-watch alerts, release alerts, and transfer alerts precisely because families reported that unexpected transfers were one of the most disorienting parts of the process. Knowing where someone is at any given moment reduces panic and helps families coordinate logistics with attorneys and bail providers.

Questions about whether the InMato app is easy to navigate come up frequently in family forums and review discussions. InMato reviews from families consistently highlight the plain-language guidance and Spanish-language availability as meaningful advantages when people are under acute stress. For families asking "is InMato legit," the answer is grounded in its structure: InMato LLC is a Delaware limited liability company, founded by J.T. Bramlette and Steve Urry, compliant with applicable consumer protection law, and explicitly designed as an information and referral service that never holds or processes user money.

13The Future of Pretrial Assessment

Several jurisdictions have moved to limit or eliminate cash bail entirely, shifting the burden onto risk assessment instruments and judicial discretion as the primary gatekeeping mechanisms. New Jersey's 2017 reforms are the most frequently cited example. California passed and then, through a referendum, partially suspended similar legislation. Illinois eliminated cash bail in 2023. Each of these experiments generates data that researchers are actively studying.

The trend lines in criminal justice policy suggest that algorithmic risk tools are not going away, but their role is shifting. Rather than replacing judicial discretion entirely, they are being positioned as one structured input among several. That is probably the appropriate frame — a tool that forces consistency into one part of the decision without foreclosing the human judgment that has to account for what no algorithm captures. The ongoing challenge is building systems where that human judgment is exercised fairly and where families have real access to information, legal representation, and support throughout the process.

14About InMato LLC

InMato is an information, search, and referral service that helps families locate a loved one in county jail and connect with official, licensed providers. Founded by J.T. Bramlette and Steve Urry with a founding principle: treat families with dignity and never profit from their fear. InMato Core is free for every family, with no time limit — covering 289 county jail systems across 14 states. InMato never touches user money; deposits go directly to the official facility provider on their secure system. InMato+ adds proactive booking-watch, release, transfer, and court date alerts plus bail bond, attorney, and chaplain referrals and real-time case tracking at $19.99/month per loved one, cancel anytime. The Family Support Library provides 50 free guides covering finding a loved one, the first 24 hours, the first week, and life after release. Available in English and Spanish. InMato LLC, a Delaware limited liability company, headquartered in Santa Barbara, California.

15Get Started with InMato LLC

Search for your loved one now at inmato.com — free for every family, with no time limit. Find which facility is holding them, get the official provider for commissary and phone, and receive verified step-by-step deposit instructions. No account required to search. Available in English and Spanish.

Originally published at https://www.inmato.com/blog/understanding-risk-assessment-in-pretrial-release

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