Community-Based Alternatives to Detention (ATD Framework)

Pipeline 03A

Transparency note: program reporting frequencies differ by provider; we pool to quarterly intervals and mark any definition or funding-related series breaks. Small-n results are suppressed for confidentiality.

Overview

Community-based alternatives to detention (ATDs) provide structured supervision and supports for youth who would otherwise be held in secure facilities pending adjudication or disposition. ATDs aim to reduce unnecessary detention while maintaining accountability and ensuring appearance in court. This page outlines the program framework, data elements, and evaluation conventions used across jurisdictions.

What We Track

Program Types

Evening Reporting Centers
Day Reporting / Intensive Case Management
Shelter / Respite (short-term)
Electronic Monitoring (GPS / app-based)
Community-based supervision / mentoring

Eligibility & Referral

Criteria at intake or detention hearing documented
Risk tool cutoffs and charge exclusions recorded
Judicial/probation overrides logged with rationale & approver

Participation & Dosage

Enrolled count and start dates
Average days in program; contact intensity (visits/week)
Attendance rate and missed-contact tracking

Outcomes

New-law vs. technical violations during supervision window
Court appearance compliance / FTA rate
Status at closure: completed / neutral exit / unsuccessful

Cost & Capacity

Program slots and utilization (avg. enrolled ÷ capacity)
Cost per participant (by program type)
Detention days avoided proxy (ADP diverted × per-diem)

Simple Flow

Referral received at intake or detention hearing; screen for ATD eligibility
- Apply risk cutoffs & charge exclusions; note capacity limits
Program assignment based on capacity, geography, supervision need
- Confirm transportation feasibility and language access
- Set expected contact intensity and schedule
Engagement period tracked via attendance, curfew compliance, services
- Record missed contacts/alerts; apply graduated responses
Progress review for compliance and risk reduction
- Adjust plan or step-down; document violations or early exits
Completion or closure with status, LOS, and 30/90-day outcomes
- Compute appearance rate, violation rate, ADP diverted

Fields

Field	Type	Required	Codeset	Description
pipeline_place_id	uuid	✅	—	Unique identifier for this pipeline place row.
pipeline_stage_id	enum	✅	stages.yml#stage_key(8) intake detention adjudication disposition supervision commitment_and_placement reentry closure	One of the 8 canonical stages.
pipeline_place_key	enum	✅	pipeline_places.yml#place_key(45) intake pre_petition_diversion_and_deflection diversion youth_assessment_tools prosecutorial_screening status_offenses adjudication case_planning family_engagement case_timeliness language_access restorative_justice detention_screening community_atds electronic_monitoring court_appearance_and_fta initial_hearing pretrial_supervision probation intensive_supervision …and 25 more	Canonical key for this place (maps to route/slug).
youth_id	string	✅	—	Salted/hashed or state UID. No plaintext PII.
staff_id	string		—	Staff primary actor for this place, if applicable.
occurred_datetime	datetime	✅	—	Timestamp when program assignment was authorized/recorded.
jurisdiction_code	string	✅	—	County/parish/circuit or standardized local code.
location_site_id	string		—	Program site/office identifier.
actor_role_code	enum		roles.yml#actor_role(7) Intake_Officer Prosecutor Defender Probation_Officer Case_Manager Facility_Staff Coach_Reentry	Role primarily responsible for this place.
legal_case_id	string		—	Docket/case identifier if already created.
source_system	string	✅	—	Origin system name.
source_file	string		—	Source batch/file id if flatfile.
extract_run_id	string		—	ETL run id for lineage.
series_break_flag	boolean		—	Comparability break applies to this row.
series_break_reason	enum		series_breaks.yml#reason(4) definition_change vendor_change coverage_change policy_change	Reason for break when flagged.
atd_type_code	enum	✅	atd_types.yml#type(5) evening_reporting day_reporting electronic_monitoring shelter_respite community_supervision	Program type (evening_reporting, day_reporting, shelter_respite, electronic_monitoring, community_supervision).
atd_program_id	string		—	Program identifier (join to program dimension for name, location, capacity).
referral_context_code	enum	✅	atd_referral_contexts.yml#context(3) intake detention_hearing review_hearing	Where/when the ATD assignment originated (intake, detention_hearing, review_hearing).
risk_tool_name	enum		instruments.yml#risk_tool_name(2) YLS_CMI SAVRY	Risk tool informing eligibility/cutoffs (RAI, YLS/CMI, local_RAI).
risk_tool_version	string		—	Version string/number for the risk tool used.
risk_cutpoint_set_key	enum		cutpoint_sets.yml#set_key(2) default_vendor_set local_policy_set_YYYYMMDD	Named threshold set applied for eligibility.
charge_exclusion_codes	array<string>		charge_exclusions.yml#exclusion(5) violent_offense weapon_involved sex_offense no_contact_order supervision_violation_severe	Charge disqualifiers present; semicolon-delimited in CSV.
eligibility_result_code	enum	✅	atd_eligibility.yml#result(4) eligible ineligible_safety ineligible_statute capacity_block	eligible, ineligible_safety, ineligible_statute, capacity_block.
override_flag	boolean		—	Judicial/probation override used contrary to guidance.
override_reason_code	enum		overrides.yml#reason(4) safety_exception capacity_constraint policy_exception supervisor_override	Rationale for override; approver captured in audit trail.
override_approver_staff_id	string		—	Staff ID of override approver.
enroll_datetime	datetime	✅	—	Program enrollment/start timestamp.
expected_contact_intensity_per_week	number		—	Planned contacts/visits per week.
curfew_required_flag	boolean		—	Curfew condition required as part of ATD.
language_access_flag	boolean		—	Language access provided for youth/caregiver.
transportation_feasible_flag	boolean		—	Transportation/route feasible for attending program.
attendance_scheduled_count	integer		—	Number of scheduled touchpoints during episode (contacts/visits).
attendance_attended_count	integer		—	Number of attended touchpoints.
missed_contact_count	integer		—	Missed contacts/alerts during the episode.
violation_event_count_new_law	integer		—	Count of alleged new-law violations during episode window.
violation_event_count_technical	integer		—	Count of technical violations during episode window.
appearances_scheduled_count	integer		—	Number of court appearances scheduled in episode window.
appearances_missed_count	integer		—	Number of missed court appearances (FTA incidents) in episode window.
program_capacity_snapshot	integer		—	Program capacity on the date of assignment.
program_cost_per_participant	number		—	Cost per participant for the episode’s program type (local budgeting figure).
detention_per_diem_rate	number		—	Local detention per-diem at the time (for upstream “days avoided” proxy; not computed here).
completion_status_code	enum	✅	completion_statuses.yml#status(3) successful neutral_exit failure	Completed, neutral_exit, or unsuccessful.
completion_datetime	datetime	✅	—	Program episode end timestamp.
unsuccessful_reason_code	enum		failure_reasons.yml#reason(3) new_offense withdrawal noncompliance	If unsuccessful, reason (new_offense, noncompliance, withdrawal).
routed_to_next_node_code	enum		next_routes.yml#route(3) prosecutorial_screening petition other	Routing after closure (continue_detention, step_down, case_review, other).
Download CSVwhat_we_track.csv

Data & Methods

ATD metrics use referral-based denominators. Key performance indicators include appearance rate, violation rate, and average daily population (ADP) diverted from secure detention. Program-level capacity is calculated as average enrolled ÷ total slots. Outcome rates use exposure-adjusted denominators described in Denominators & Exposure Time. When programs or risk cutoffs change, we mark series breaks. Data standards align with Data Quality & Validation and Cross-Jurisdiction Comparability. Cost benchmarks follow analytic guidance in Aggregation & Scale Effects.

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