Conditions of successful treatment referral practices with justice-involved youth: Qualitative insights from probation and service provider staff involved in JJ-TRIALS.

INTRODUCTION: Compared to the general U.S. adolescent population, young people involved in the juvenile justice system are at greater risk of experiencing substance use (SU) issues. There are critical opportunities across the juvenile justice continuum, at points of interface with community-based treatment services, to screen and assess for SU issues, identify unmet treatment needs, and refer those in need to treatment. The treatment referral process is, however, complex, and contingent on a seamless nexus between juvenile justice operations and the wider treatment provider landscape. Given the lack of successful SU referrals among justice-involved youth and the variable referral rates across jurisdictions, this study's aim is to provide a qualitative, explanatory understanding of the conditions that together contribute to successful referring practices. METHODS: The study is based on an analysis of a qualitative dataset comprising focus group data with probation and community-based behavioral health treatment staff working in 31 sites in 6 different states as part of the clustered randomized trial of an organizational change intervention known as JJ-TRIALS (Juvenile Justice Translational Research on Interventions for Adolescents in the Legal System). The data contain respondents' narratives on the achievements, successes, and challenges with implementing the intervention. The data were analyzed through a combination of strategies to identify the conditions that both facilitate and impede referral processes between probation offices and community-based SU treatment providers. RESULTS: Participants across sites discussed the positive impacts that the JJ-TRIALS intervention had on their improved ability to communicate, collaborate, and collect data. From the interviews, seven main conditions were observed to contribute to successful SU treatment referral practices: (1) communication (inter-organizational); (2) collaboration; (3) data-driven practices; (4) family engagement; (5) institutionalized policy and referral documentation; (6) efficient referral policies and procedures; and (7) suitable and accessible system of treatment providers. CONCLUSION: Findings highlight the value of a holistic understanding of successful treatment referrals for justice-involved youth and help inform research and practice efforts to identify and measure the many dimensions of referral-making at the interface of juvenile probation and behavioral health services.

The impact of co-occurring mental health problems on referral to and initiation of treatment among youth under probation supervision: Findings from a cluster randomized trial.

INTRODUCTION: Many youth under community supervision have substance use and co-occurring mental health issues. Yet, access to treatment is limited, and many programs cannot address co-occurring disorders. This study examines how co-occurring symptoms among youth on probation affect referral to and initiation of treatment. We hypothesize that both referral and initiation rates will be lower for youth with any co-occurring indicators. METHODS: This study collected administrative data from 14 sites in three states between March 2014 and November 2017 using JJ-TRIALS, a cluster randomized trial. Among 8552 youth in need of treatment (screened as having a substance use problem, drug possession arrest, positive drug test, etc.), 2069 received a referral to treatment and 1630 initiated treatment among those referred. A co-occurring indicator (n = 2828) was based on symptoms of an internalizing and/or externalizing issue. Descriptive analyses compared referral and initiation by behavioral health status. Two-level mixed effects logistic regression models estimated effects of site-level variables. RESULTS: Among youth in need with co-occurring internal, external, or both indicators, only 16 %, 18 %, and 20 % were referred to treatment and of those referred, 63 %, 69 %, and 57 % initiated treatment, respectively. Comparatively, 27 % and 83 % of youth with a substance use only indicator were referred and initiated treatment respectively. Multi-level multivariate models found that, contrary to our hypothesis, co-occurring-both (p = 0.00, OR 1.44) and co-occurring-internal indicators (p = 0.06, OR 1.25) predicted higher referral but there were no differences in initiation rates. However, there was substantial site-level variation. CONCLUSIONS: Youth on probation in need of substance use treatment with co-occurring issues have low referral rates. Behavioral health status may influence youth referral to treatment depending on where a youth is located. Depending on the site, there may be a lack of community programs that can adequately treat youth with co-occurring issues and reduce unmet service needs.

Results of a national survey of substance use treatment services for youth under community supervision.

BACKGROUND: Despite the heightened risk for substance use (SU) among youth in the juvenile justice system, many do not receive the treatment that they need. OBJECTIVES: The purpose of this study is to examine the extent to which youth under community supervision by juvenile justice agencies receive community-based SU services and the factors associated with access to such services. METHODS: Data are from a nationally representative sample of Community Supervision (CS) agencies and their primary behavioral health (BH) partners. Surveys were completed by 192 CS and 271 BH agencies. RESULTS: SU services are more often available through BH than CS for all treatment modalities. EBPs are more likely to be used by BH than by CS. Co-location of services occurs most often in communities with fewer treatment options and is associated with higher interagency collaboration. Youth are more likely to receive services in communities with higher EBP use, which mediates the relationship between the availability of SU treatment modalities and the proportion of youth served. CONCLUSION: Findings identify opportunities to strengthen community systems and improve linkage to care.

The comparative effectiveness of Core versus Core+Enhanced implementation strategies in a randomized controlled trial to improve substance use treatment receipt among justice-involved youth.

BACKGROUND: Most justice-involved youth are supervised in community settings, where assessment and linkage to substance use (SU) treatment services are inconsistent and fragmented. Only 1/3 of youth with an identified SU need receive a treatment referral and even fewer initiate services. Thus, improving identification and linkage to treatment requires coordination across juvenile justice (JJ) and behavioral health (BH) agencies. The current study examines the comparative effectiveness of two bundled implementation intervention strategies for improving SU treatment initiation, engagement, and continuing care among justice-involved youth supervised in community settings. Exploration, Preparation, Implementation, Sustainment (EPIS) served as the conceptual framework for study design and selection/timing of implementation intervention components, and the BH Services Cascade served as the conceptual and measurement framework for identifying and addressing gaps in service receipt. METHODS: Part of a larger Juvenile-Justice Translational Research on Interventions for Adolescents in the Legal System (JJ-TRIALS) Cooperative, this study involved a multisite, cluster-randomized control trial where sites were paired then randomly assigned to receive Core (training teams on the BH Services Cascade and data-driven decision making; supporting goal selection) or Core+Enhanced (external facilitation of implementation teams) intervention components. Youth service records were collected from 20 JJ community supervision agencies (in five states) across five study phases (baseline, pre-randomization, early experiment, late experiment, maintenance). Implementation teams comprised of JJ and BH staff collaboratively identified goals along the BH Cascade and used data-driven decision-making to implement change. RESULTS: Results suggest that Core intervention components were effective at increasing service receipt over time relative to baseline, but differences between Core and Core+Enhanced conditions were non-significant. Time to service initiation was shorter among Core+Enhanced sites, and deeper Cascade penetration occurred when external facilitation (of implementation teams) was provided. Wide variation existed in the degree and nature of change across service systems. CONCLUSIONS: Findings demonstrate the criticality of early EPIS phases, demonstrating that strategies provided during the formative exploration and preparation phases produced some improvement in service receipt, whereas implementation-focused activities produced incremental improvement in moving youth farther along the Cascade.

Predicting initiation to treatment for youth on probation: A multi-level approach.

BACKGROUND: Previous research on youth involved in the juvenile legal system (JLS), who have higher substance use prevalence than other adolescents, has focused on treatment outcomes post-initiation. Scant research has examined factors affecting treatment initiation following JLS referral. The current work addresses this gap by estimating net impacts of state, site, and client attributes on initiating treatment. METHODS: Mixed effects logistic regression models analyzed data from the Behavioral Health Services Cascade framework of the JJ-TRIALS project for 5325 youth records from 22 sites across six states, using weighted hot deck imputation to address missing data. The analysis permitted estimating net impacts of individual factors while controlling for state variation factors and separating out within-state site variation. RESULTS: Rates of treatment initiation varied significantly across sites. About 63% of outcome variation arose from site and state disparities. The odds of initiating treatment were 127% higher for youth under a higher supervision level compared to youth under low supervision. Race and ethnicity were significantly associated with initiation, with Black and Hispanic youth having 44% and 42% lower odds of initiating treatment, respectively. CONCLUSION: Individual factors, including race, ethnicity, and level of supervision, significantly differed in treatment initiation, controlling for between-state variation and allowing between-site-within-state effects to operate separately. A deeper understanding of factors shaping initiation may help behavioral health and JLS agencies to develop strategies to increase initiation for referred youth. This is the first study delineating individual, cross-program, and between-state variation in treatment initiation among referred youth.

The Impact of Juvenile Drug Treatment Courts on Substance Use, Mental Health, and Recidivism: Results from a Multisite Experimental Evaluation.

Juvenile Drug Treatment Courts (JDTC) emerged in the mid-1990s as a potential solution to concern about substance use among youth in the juvenile justice system (JJS). Despite substantial research, findings on the JDTC effectiveness for reducing recidivism and substance use remain inconsistent, hampered by methodological problems. In 2016, the Office of Juvenile Justice and Delinquency Prevention published research-based JDTC Guidelines for best practices, and funded technical assistance for implementation and a multisite national outcomes study among JDTCs implementing the Guidelines. Ten sites were originally selected for this study, with a JDTC and Traditional Juvenile Court (TJC) participating. In two sites, moderate- to high-risk youth were randomized to JDTC or TJC, and in eight sites, a regression discontinuity design assigned moderate- to high-risk youth to JDTC, and other youth to TJC. Findings from four sites with sufficient cases and follow-up rates indicated that JDTCs reduced cannabis use, increased access to mental health services, and reduced recidivism. However, the effects were small to moderate, with positive impacts mainly observed among high-risk youth. The impacts of JDTCs may have been attenuated because Guidelines implementation was inconsistent across courts, and some TJCs implemented elements of the Guidelines, blurring the distinction between JDTCs and TJCs.

Using structured implementation interventions to improve referral to substance use treatment among justice-involved youth: Findings from a multisite cluster randomized trial.

INTRODUCTION: Youth involved in the justice system have high rates of alcohol and other drug use, but limited treatment engagement. JJ-TRIALS tested implementation activities with community supervision (CS) and behavioral health (BH) agencies to improve screening, identification of substance use service need, referral, and treatment initiation and engagement, guided by the BH Services Cascade and EPIS frameworks. This paper summarizes intervention impacts on referrals to treatment among youth on CS. METHODS: This multisite cluster-randomized trial involved 18 matched pairs of sites in 36 counties in seven states randomly assigned to core or enhanced conditions after implementing the core intervention at all sites for six months. Enhanced sites received external facilitation for local change team activities to reduce unmet treatment needs; Core sites were encouraged to form interagency workgroups. The dependent variable was percentage referred to treatment among youth in need (N = 14,012). Two-level Bayesian regression assessed factors predicting referral across all sites and time periods. Generalized linear mixed models using logit transformation tested two hypotheses: (H1) referrals will increase from baseline to the experimental period, (H2) referral increases will be larger in enhanced sites than in core sites. RESULTS: Although the intervention significantly increased referral, condition did not significantly predict referral across all time periods. Youth who tested drug positive, had an alcohol/other drug-related or felony charge, were placed in secure detention or assigned more intensive supervision, or who were White were more likely to be referred. H1 (p < .05) and H2 (p < .0001) were both significant in the hypothesized direction. Interaction analyses comparing site pair differences showed that findings were not consistent across sites. CONCLUSIONS: The percentage of youth referred to treatment increased compared with baseline overall, and enhanced sites showed larger increases in referrals over time. However, variations in effects suggest that site-level differences were important. Researchers should carry out mixed methods studies to further understand reasons for the inconsistent findings within randomized site pairs, and how to further improve treatment referrals across CS and BH systems. Findings also highlight that even when CS agencies work collaboratively with BH providers to improve referrals, most justice-involved youth who need SU services are not referred.

Treatment outcomes associated with medications for opioid use disorder (MOUD) among criminal justice-referred admissions to residential treatment in the U.S., 2015-2018.

AIMS: To examine the use and association of medications for opioid use disorder (MOUD) with treatment completion and retention for criminal justice referred (CJR) admissions to residential treatment. METHODS: A retrospective analysis of the Treatment Episode Dataset-Discharge (TEDS-D; 2015-2018) for adults (N = 205,348) admitted to short-term (ST) (< 30 days) or long-term (LT) (>30 days) residential treatment for OUD. Outcomes were MOUD in treatment plans, and treatment completion and retention (ST >10 days; LT > 90 days). Logistic regression analyses were conducted separately for ST and LT settings. RESULTS: CJR admissions were less likely to have MOUD than non-CJR admissions (ST, 11% vs. 21%; LT, 10% vs. 24%, respectively) and were more likely to complete and be retained in treatment. In ST settings, MOUD was associated with higher likelihood of treatment completion and retention. In LT settings, MOUD was associated with higher likelihood of treatment retention and lower likelihood of treatment completion. These associations tended to be slightly weaker for CJR admissions, with the exception of treatment completion in LT settings, but the moderating effect size of CJR status in all models was very small. Small differences in the moderating effect of CJR status by race and ethnicity were observed in LT settings. CONCLUSIONS: MOUD is greatly under-utilized for CJR patients, and given that MOUD was associated with positive outcomes, there is a critical need to find ways to increase access to MOUD for CJR patients in residential treatment. Race and ethnicity appear to have relatively little impact on outcomes.

The impact of Juvenile Drug Treatment Courts (JDTC) implementing Federal Evidence-Based Guidelines on recidivism and substance use: multisite Randomized Controlled Trial (RCT) and Regression Discontinuity (RDD) Designs.

BACKGROUND: Juvenile drug treatment courts (JDTC) have struggled to define themselves since their inception in 1995. Early courts followed a format similar to adult drug courts, but these did not address the unique needs of juveniles, which led to the creation of 16 Strategies by a consensus panel of practitioners and researchers. But, like the first JDTCs, research with courts following these strategies failed to provide convincing evidence that this "model" was associated with significant reductions in recidivism or drug use. More recently, a new set of evidence-based guidelines were developed through meta-analyses commissioned by the Office of Juvenile Justice and Delinquency Prevention (OJJDP, 2016). METHOD: OJJDP provided funding for a rigorous multi-site evaluation of the guidelines. This study protocol paper for the Juvenile Drug Treatment Court (JDTC) Guidelines Cross-Site Evaluation presents research designs for the comparison of youth outcomes from 10 JDTCs compared with 10 Traditional Juvenile Courts (TJCs) in the same jurisdictions. Two sites opted into a randomized controlled trial (RCT) and eight sites chose to follow a regression discontinuity design (RDD). Youth data are captured at baseline, and at 6- and 12-month follow-ups using an interview comprised of several standardized assessments. The youths' official records also are abstracted for recidivism and substance use information. The degree to which the evidence-based guidelines are implemented at each site is assessed via an in-depth court self-assessment collected at baseline and again 2 years later and via structured site visits conducted once during implementation. DISCUSSION: As a field-based trial, using both RCT and RDD designs, findings will provide important, policy-relevant information regarding the implementation of the OJJDP evidence-based guidelines, including the degree to which JDTCs adopted and/or modified these practices, their relative impact on recidivism and substance use, as well as the degree to which JDTCs differ from TJCs. Specific inferences may be drawn about whether following or not following specific guidelines differentially impact youth outcomes, yielding recommendations about the translation of this information from research-to-practice for potentiating the broader adoption of these guidelines by JDTCs nationwide. CLINICAL TRIALS REGISTRATION: This was not an NIH supported trial. The funder, OJJDP/NIJ, instead required publishing the design with even more information at https://www.ojp.gov/ncjrs/virtual-library/abstracts/juvenile-drug-treatment-court-jdtc-guidelines-cross-site-evaluation .

Augmenting substance use treatment in the drug court: A pilot randomized trial of peer recovery support.

INTRODUCTION: Peer recovery specialist (PRS) support has been used to varying degrees in community substance use and mental health treatment for a number of years. Although there has been some evidence of positive PRS impacts on client outcomes, previous research has shown inconsistent findings and methodological shortcomings. Given the high prevalence of substance use disorders among people involved in the criminal justice system, and limited available treatment opportunities, PRS support could provide a cost-effective opportunity to promote positive client outcomes. Drug courts, with their focus on treatment and rehabilitation rather than punishment, are an ideal laboratory to test the impacts of PRS on substance use recurrence and recidivism. METHODS: The present study is, to our knowledge, the first experimental test of the PRS model in a justice system setting. We implemented a pilot experiment in the Philadelphia Treatment Court, randomizing 76 drug court participants to be linked to a PRS or to services as usual, and analyzed client outcomes over a nine-month follow-up period. Most participants' drug of choice was marijuana. RESULTS: The results showed a reduction in rearrests and improvement in drug court engagement, but no impact on substance use recurrence or treatment engagement. CONCLUSIONS: The mixed findings suggest some promise for the PRS model in the drug court setting, but the need for further research with more diverse and higher-risk drug court populations.

The Missing Link(age): Multilevel Contributors to Service Uptake Failure Among Youths on Community Justice Supervision.

OBJECTIVES: Youths in the juvenile justice system often do not access needed behavioral health services. The behavioral health services cascade model was used to examine rates of substance use screening, identification of substance use treatment needs, and referral to and initiation of treatment among youths undergoing juvenile justice system intake and to identify when treatment access is most challenged. Characteristics associated with identification of behavioral health needs and linkage to community services were also examined. METHODS: Data were drawn from administrative records of 33 community justice agencies in seven states participating in Juvenile Justice-Translational Research on Interventions for Adolescents in the Legal System, funded by the National Institute on Drug Abuse (N=8,307 youths). Contributions of youth, staff, agency, and county characteristics to identification of behavioral health needs and linkage to community services were examined. RESULTS: More than 70% (5,942 of 8,307) of youths were screened for substance use problems, and more than half needed treatment. Among those in need, only about one-fifth were referred to treatment, and among those referred, 67.5% initiated treatment. Overall, <10% of youths with identified needs initiated services. Multivariable multilevel regression analyses revealed several contributors to service-related outcomes, with youths' level of supervision being among the strongest predictors of treatment referral. CONCLUSIONS: Community justice agencies appear to follow an approach that focuses identification and linkage practices on concerns other than youths' behavioral health needs, although such needs contribute to reoffending. Local agencies should coordinate efforts to support interagency communication in the referral and cross-system linkage process.

Using implementation interventions and peer recovery support to improve opioid treatment outcomes in community supervision: Protocol.

OBJECTIVE: The purpose is to determine whether a facilitated local change team (LCT) intervention improves linkage to medication for opioid use disorder (MOUD) and implementation outcomes, and whether participant-level outcomes are further enhanced by use of peer support specialists (PSS). METHODS: This Type 1 hybrid implementation-effectiveness study involves a pre-post design (implementation study) followed by a randomized trial of PSS (effectiveness study). Participants are at least 114 justice and service staff from 7 sites in three states: probation officers, community treatment providers, a supervisor from each agency, and key stakeholders. The study will recruit up to 680 individuals on probation from seven adult community probation offices; eligible individuals will be recently committed, English speakers, with opioid use disorder (OUD). Core Implementation Study: The study will use the exploration, preparation, implementation, sustainability (EPIS) framework to guide system-change through facilitated LCTs of probation and community treatment staff given a core set of implementation strategies to set goals. The study will collect program-level and staff survey data at the end of each EPIS stage. Implementation outcomes: Organizational engagement in MOUD (primary), plus changes in staff knowledge/attitudes and organizational outcomes (secondary). Effectiveness Study of PSS: After completing implementation, the study will randomize adults on probation to receive PSS vs. treatment as usual, with assessments at baseline, 3, 6 and 12 months. Effectiveness outcomes include participant engagement in MOUD (primary), probation revocation, illicit opioid use, and overdoses. Other aims include identifying barriers and facilitators, and cost-benefit analysis of PSS. Adaptations in response to COVID-19 included moving many procedures to remote methods.

Female Intimate Partner Violence Survivors' Experiences With Disclosure to Informal Network Members.

With the growing recognition of the importance of disclosure to informal network members (INMs) in shaping experiences for survivors of intimate partner violence (IPV), numerous quantitative studies have examined these processes, but have not provided detailed descriptive analyses of the disclosure process. Yet, these descriptive data can be a rich contribution in their own right given the dearth of knowledge about IPV disclosure. This article presents in-depth descriptive data on a Mid-Atlantic metropolitan area sample of 200 female IPV survivors' experiences with disclosure to their INMs (collected using a one-time, online survey). Most survivors (66%) disclosed to at least one INM during their initial violent relationship. The three most commonly experienced reactions to disclosure were INMs listening to the survivors' feelings, urging the survivors to talk about how they felt, and expressing that the violent partners' behaviors were problematic. The three least commonly experienced reactions were INMs blaming survivors or saying that they deserved to be treated that way, offering financial assistance, and telling them to stop talking about the incident(s). Among survivors who disclosed to their INMs, 93.9% agreed that disclosure to their INMs helped them in some way. Survivors had disclosure experiences that were relatively comparable with other survivor samples, indicating good external validity. The findings regarding reactions to disclosure were also comparable with previous studies, although the extant published literature was quite limited. Young female survivors experience a variety of reactions from their INMs, most often experiencing supportive and subjectively "positive" reactions. As the research delving into the influences and impacts of disclosure expands, close attention should be paid to how these variables are being collected and disseminated so that we have a better understanding of what happens during disclosure to INMs.

A System-Level Intervention to Encourage Collaboration Between Juvenile Justice and Public Health Agencies to Promote HIV/STI Testing.

Justice-involved youth are at high risk for HIV and STIs, and justice agencies are uniquely poised to offer HIV/STI testing. However, testing in these settings is not routine and represents a missed opportunity. This study describes a system-level implementation intervention designed to increase access to HIV/STI testing through juvenile justice (JJ) and public health agency collaboration across six counties in six states in the United States. Local change teams, active facilitation, and training were utilized to facilitate agency partnerships and development of HIV/STI practice change protocols. Five counties established health and JJ partnerships and four counties successfully implemented their protocols. Sites with HIV/STI education and testing protocols behaviorally screened 98.5% of youth and tested 41.2% of those youth; 0% were HIV+ and 43.2% had an STI. The intervention provides a feasible, scalable solution, through promoting partnerships between JJ and health agencies, to link youth to testing and treatment services.

Evaluating Fidelity to a Modified NIATx Process Improvement Strategy for Improving HIV Services in Correctional Facilities.

In a study aimed at improving the quality of HIV services for inmates, an organizational process improvement strategy using change teams was tested in 14 correctional facilities in 8 US states and Puerto Rico. Data to examine fidelity to the process improvement strategy consisted of quantitative ratings of the structural and process components of the strategy and qualitative notes that explicate challenges in maintaining fidelity to the strategy. Fidelity challenges included (1) lack of communication and leadership within change teams, (2) instability in team membership, and (3) issues with data utilization in decision-making to implement improvements to services delivery.

Probation Staff Attitudes Toward Substance Abuse Treatment and Evidence-Based Practices.

Given the substantial need for and relatively low access to effective substance use disorder treatment for people on probation, it is critical to understand organizational and staff attitudes that may hinder or facilitate treatment linkage and willingness to adopt evidence-based practices. This study used survey data from a large county probation department to assess staff members' attitudes and perceptions regarding their organization's climate for innovation, role of substance use disorder treatment, support for evidence-based treatment, and organizational barriers to change. Probation staff were open to incorporating treatment into probation supervision, expressed support for rehabilitation models, and agreed that they would adopt innovations if required or they found them to be appealing. However, they expressed some concerns about the level of agency support for innovation and collaboration. Attitudes and perceptions varied by staff characteristics. Implications for expanding organizational change and adoption of evidence-based treatment practices in probation are discussed.

Efficacy of Structured Organizational Change Intervention on HIV Testing in Correctional Facilities.

This article presents findings from a multisite cluster randomized trial of a structured organizational change intervention for improving HIV testing services in jails and prisons. Matched pairs of prison and jail facilities were randomized to experimental and control conditions; all facilities received baseline training about best practices in HIV testing and other HIV services and selected an area of HIV services on which to focus improvement efforts. The experimental facilities formed local change teams and were provided external coaching based on the Network for the Improvement of Addiction Treatment (NIATx) process improvement model. Difference-indifference analyses indicate a significant relative increase in HIV testing in the experimental compared to the control condition. Meta-analyses across the matched pairs indicated a small to medium effect of increased testing overall. The results indicate that the local change team model can achieve significant increases in HIV testing in correctional facilities. Implications for HIV testing policies and challenges for expanding testing are discussed.

The Juvenile Justice Behavioral Health Services Cascade: A new framework for measuring unmet substance use treatment services needs among adolescent offenders.

OVERVIEW: Substance use and substance use disorders are highly prevalent among youth under juvenile justice (JJ) supervision, and related to delinquency, psychopathology, social problems, risky sex and sexually transmitted infections, and health problems. However, numerous gaps exist in the identification of behavioral health (BH) problems and in the subsequent referral, initiation and retention in treatment for youth in community justice settings. This reflects both organizational and systems factors, including coordination between justice and BH agencies. METHODS AND RESULTS: This paper presents a new framework, the Juvenile Justice Behavioral Health Services Cascade ("Cascade"), for measuring unmet substance use treatment needs to illustrate how the cascade approach can be useful in understanding service delivery issues and identifying strategies to improve treatment engagement and outcomes for youth under community JJ supervision. We discuss the organizational and systems barriers for linking delinquent youth to BH services, and explain how the Cascade can help understand and address these barriers. We provide a detailed description of the sequential steps and measures of the Cascade, and then offer an example of its application from the Juvenile Justice - Translational Research on Interventions for Adolescents in the Legal System project (JJ-TRIALS), a multi-site research cooperative funded by the National Institute on Drug Abuse. CONCLUSION: As illustrated with substance abuse treatment, the Cascade has potential for informing and guiding efforts to improve behavioral health service linkages for adolescent offenders, developing and testing interventions and policies to improve interagency and cross-systems coordination, and informing the development of measures and interventions for improving the implementation of treatment in complex multisystem service settings. Clinical Trials Registration number - NCT02672150.