Vertical pack — Public Sector & Sovereign

    Public Sector AI Assurance.

    An independent assurance overlay above AI used in public administration — eligibility, casework triage, enforcement prioritisation, correspondence and citizen-facing service. We do not make administrative decisions and we do not set policy. We evidence that the system was authorised for the function, that the data stayed inside its sovereign boundary, that a named official owned the determination, and that the file can withstand review, appeal or audit.

    Cabier does not exercise statutory discretion, does not act as the decision-maker of record and does not replace the department's own legal, privacy or audit function.

    The obligation set

    Resolved into testable control statements. Applicability is confirmed per engagement — jurisdiction, product and deployment scope all change what binds.

    Administrative-law duties

    A determination affecting a citizen must have stated reasons, an identifiable decision-maker and a record capable of supporting review or appeal — whether or not a model contributed to it.

    Procurement and contract conditions

    Assurance obligations flowed down to the vendor and evidenced in operation, not accepted once at award and left unverified.

    Sovereign residency and classification

    Processing, retention and inference confined to approved regions and handling levels, with the boundary tested rather than asserted in a schedule.

    Privacy and information rights

    Lawful basis, minimisation and access/correction rights applied to prompts, retrieved records and generated output — not only to the source system of record.

    Equity and accessibility duties

    Subgroup performance and accessibility of AI-assisted service tested and recorded where the system affects access to a benefit or a service.

    Transparency and public reporting

    A defensible public position on where AI is used, at what stage of the decision, and under whose accountability.

    Pack modules

    Each module is a vertical projection of an asset already running on the platform. No parallel store, no second evidence chain.

    Administrative Decision Vault

    Unified Evidence Vault

    Prompt, retrieved case references, model version, output, reviewing official and final determination captured independently of the vendor console, with a file identifier that survives appeal timelines.

    Sovereign Boundary Control

    Sovereign AI Governance OS — residency and PII gating

    Tested prevention of citizen data, classified material or case content reaching an unapproved model, region or retention path — with the refusal recorded as evidence.

    Authorised Function Registry

    AI Model Inventory

    Which system is approved for which administrative function, at which version, under whose delegated authority, and when that authorisation lapses.

    Official Accountability Log

    Unified Audit Trail

    An ordered record of who invoked the system, what it returned, which official accepted, amended or rejected it, and what entered the citizen's file.

    Vendor Assurance Flow-Down

    TPRM Workbench

    Control testing over contracted AI suppliers where the department carries the statutory obligation but not the code.

    What the institution gets that a horizontal tool cannot give it

    Public Sector AI Governance Maturity Score

    A scored position across authorisation, sovereign boundary, logging, official accountability, subgroup performance, citizen transparency, monitoring and reconstruction — refreshed continuously.

    Sovereign Containment Score

    A separate measure of whether citizen or classified data can leave its approved boundary at all, tested against live paths rather than contract language.

    Review & Appeal Readiness View

    Where determinations are accumulating without stated reasons, a named official or a reconstructable record — surfaced by programme before an ombudsman or audit finding.

    Legislative & Audit Attestation Pack

    A scoped attestation for the accounting officer, auditor general or oversight committee, naming systems in scope, period and stated limitations.

    Public sector AI governance maturity — self-assessment

    Eight questions across the dimensions an audit, ombudsman review or judicial challenge would actually test. Answers stay in your browser — nothing is submitted, stored or transmitted.

    01 · Authorisation

    Is every AI system touching a citizen determination approved for a defined function, at a defined version, under named delegated authority?

    02 · Sovereign boundary

    Is there a tested control preventing citizen or classified data reaching an unapproved model, region or retention path?

    03 · Stated reasons

    Does every AI-assisted determination carry reasons that can be given to the citizen and traced to the version that produced them?

    04 · Official accountability

    Is a named official recorded as accepting, amending or rejecting each AI-assisted output before it affects the citizen?

    05 · Equity testing

    Is subgroup performance tested on a defined cadence where the system affects access to a benefit or service?

    06 · Citizen transparency

    Is there an approved public position on where AI is used and at what stage of the decision?

    07 · Vendor flow-down

    Do you hold operational control evidence from contracted AI suppliers, beyond their award-stage assurances?

    08 · Reconstruction

    Could you reconstruct, on request, how a specific determination was produced, within statutory appeal timelines?

    Answer the questions above to see an indicative position.

    The 90-day pilot

    Days 1–15

    Scope and legal mapping

    Programmes and systems in scope fixed; administrative-law, privacy and residency obligations resolved into testable control statements.

    Days 16–45

    Authorisation and boundary control

    Function registry reconciled; sovereign residency and data-boundary controls tested against live casework paths.

    Days 46–75

    Reasons, equity and vendor evidence

    Stated-reason traceability tested end to end; subgroup performance run on live caseload; supplier flow-down gaps named.

    Days 76–90

    Position and attestation

    Maturity and sovereign containment positions issued, gap remediation sequenced, attestation scope agreed with the accounting officer.

    Scope, residency and retention are set per engagement. Commercial terms are quoted against scope.

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