Justice System Analytics & Operations

Court Caseflow & Backlog Clearance Modeler

Simulate trial capacity, judicial sitting days, cracked trial rates, and complainant attrition risk for criminal courts tackling severe trial backlogs in serious sexual offences (RASSO) and complex indictable crimes.

Operational Levers

Docket Scale & Receipt Volume Active Backlog

Active Outstanding Cases 8,400

Active untried cases committed to Crown Court dockets.

New Monthly Receipts 620 / mo

Fresh charging decisions entering the trial listing queue each month.

Judicial Sitting & Courtroom Supply Capacity

Monthly Judicial Sitting Days 3,800 days

Total court-days allocated across Circuit Judges & Recorders.

Avg Trial Length Sitting days per trial

Cracked / Ineffective % trials listed not proceeding

Procedural Measures & Reforms Interventions

Section 28 Pre-recorded Cross-Examination Captures vulnerable witness testimony pre-trial; cuts courtroom trial duration by ~18% and reduces trial collapse.

Dedicated 'Nightingale' Specialist Annexe Surges active courtroom availability (+15% effective sitting days dedicated strictly to sexual offenses).

Early Case Progression Officers (ECPO) Strict pre-trial disclosure policing; drives down cracked/ineffective rate by 8 percentage points.

Specialist Prosecution & Defense Legal Aid Uplift Mitigates advocate shortages and trial rescheduling; reduces adjournments by 12%.

Clearance Projection Window

Clearance Dynamics & Caseflow Impact

+42 cases / month (Accumulating)

Projected Net Monthly Rate +35 Deficit Receipts > Disposals

Projected End Backlog 9,660 in 36 months

Avg Wait: Charge to Trial 685 days ~22.8 months delay

Victim / Witness Attrition 31.4% Elevated Cases dropping out

Projected Backlog Path vs. Disposal Capacity

Backlog Trend

Capacity Deficit Line

Target Healthy Buffer (2,500)

Caseflow Stage Friction Breakdown

Monthly throughput velocity by stage

1. New Charging Inflow 620 / mo CPS to Crown committals

2. Effective Trial Slots 421 / mo Based on 3,800 sitting days

3. Non-Trial Disposals 164 / mo Early guilty pleas & diversion

4. Net Case Clearance 585 / mo -35 monthly shortfall

Intervention Milestone Trajectory

Forecast at 6-month operational intervals

Month	Outstanding Cases	Net Monthly Δ	Median Days to Trial	Complainant Attrition Risk	Status

Model calibrated to current inputs.

Export Audit CSV

Operational Foundations: Tackling Chronic Trial Delays

Severe criminal court backlogs—particularly in Rape and Serious Sexual Offences (RASSO) in England and Wales—create compounding friction. Long delays between charge and trial cause severe witness attrition, evidence degradation, and breaches of speedy-trial rights.

Section 28 Pre-Recorded Evidence

Allows vulnerable victims and key witnesses to record their cross-examination weeks after plea and trial preparation hearings (PTPH), decoupling their testimony from the main trial date and preserving testimony integrity.

Cracked & Ineffective Trials

A trial is 'cracked' when it ends on the day without proceeding (e.g., late guilty plea or prosecution offering no evidence); it is 'ineffective' if adjourned due to missing defense counsel, digital disclosure disputes, or witness non-attendance.

Little's Law in Court Systems

Work in Progress (Backlog) = Inflow Rate × Cycle Time. If effective trial capacity is lower than new charge receipts, the queue grows linearly while wait times compound exponentially, driving witness withdrawal rates past 30%.