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The “Digital Post Office”: delivering a connected justice journey

29 April 20264 min read
Guest Insights
The “Digital Post Office”: delivering a connected justice journey

Kevin Hoskins

Managing Director, Q Solution

As we mark techUK’s #digitaljusticeimpactday2026, the spotlight within the justice community is firmly fixed on modernisation. When we discuss the "justice journey," we often focus on the visible milestones: the moment of arrest, the appearance in a magistrate's court, or the final verdict. However, for stakeholders across the sector, the true challenge lies in the invisible gaps between these milestones—the points where information must pass from one agency to another without losing momentum, integrity, or clarity.

To deliver on the priorities of the Justice Delivery Plan, we must prioritise the "digital plumbing" that connects our disparate organisations, making the Criminal Justice System (CJS) more accessible and responsive. At the heart of this connection is the Criminal Justice Secure Exchange (CJSE). Often described as the "digital post office" of the justice community, the CJSE is a vital, cloud-native engine supporting the efficiency and unified delivery of our legal system.

The Infrastructure of interoperability

The CJS is a vast ecosystem of independent entities, including 43 police forces across England and Wales, the Crown Prosecution Service (CPS), HM Courts & Tribunals Service (HMCTS), and the Home Office to name just a few. These organisations typically operate within siloed Case and Record Management Systems. The CJSE sits at the centre of this web, enabling these systems to exchange criminal case information seamlessly and supporting the strategic goal of a joined-up justice system.

The scale of this interoperability is immense:

  • The CJSE handles over 60 million "digital letters" annually.

  • These are complex digital case files containing witness statements, defendant details, images and structured forms like the MG5 and MG10.

  • By acting as a secure exchange, the CJSE ensures data reaches its destination with integrity, non-repudiation, and full audibility.

Crucially, the CJSE is supporting the rollout of Digital Case Files (DCF). This programme drives the exchange of structured, accurate digital information, reducing reliance on legacy forms and increasing frontline efficiency by removing the need to re-key data—a major source of error and delay.

Leveraging AWS and microservices for systemic agility

The CJSE’s modern technical foundation is a strategic advantage for the Justice Delivery Plan’s focus on agility. Since December 2021, the service has been provided as a SaaS by Q-Solution, built on a serverless architecture within AWS.

This microservices-based design allows for a level of responsiveness previously difficult in government tech. While monolithic systems are slow to change, this architecture can be adapted in near real-time to meet shifting legislative or operational requirements. When the Metropolitan Police transitioned from their legacy COPA system to CONNECT. The CJSE was asked to support parallel running of the two systems. The architecture enabled changes to be implemented within just a week. This ensures that technological transitions do not disrupt the flow of justice, maintaining public trust.

Furthermore, the serverless nature of the system provides the operational resilience required for critical national infrastructure. With message persistence and replay capabilities, the exchange can recover from network or local system failures without losing a single byte of case information.

Transforming data into actionable insights

Currently, over 5TB of structured digital case information traverses the CJSE annually. This represents a unique opportunity to use data as a strategic asset. The CJSE is a system where the entire journey of a case—from initial arrest to final result—is captured within a single landscape.

By leveraging the data flowing, we could directly address key "pain points" identified in the Justice Delivery Plan:

  • Alleviating Court Backlogs: By utilising real-time Management Information (MI) reporting, stakeholders could identify exactly where bottlenecks occur in the "arrest-to-verdict" pipeline. If specific case types are delayed at the prosecution stage, resources could be reallocated dynamically to maintain throughput. Data quality issues could be identified de-risking failed court hearings

  • Predictive Analytics: Sending anonymised, structured data to advanced platforms helps predict court capacity needs and identifies patterns in technology-enabled offences, allowing for proactive rather than reactive legal strategies

  • Streamlined Prosecution: The use of APIs could facilitate tighter integration between stakeholders, speeding up the judicial process and improving the experience for victims and witnesses.

A future-proof justice journey

As we look toward the future, our focus remains on making the system more responsive to the needs of all involved—from victims and defendants to the professionals who keep the wheels of justice turning.

The CJSE proves that by investing in robust "digital plumbing," we do more than move data; we provide the foundation for a more efficient, transparent, and fair legal system. Those 60 million annual messages represent 60 million opportunities to ensure justice is delivered accurately and on time. By continuing to evolve our use of microservices and data analytics, we can move to a system that is truly informed by data, delivering better value for the taxpayer and better outcomes for society.