diff --git a/api/dashboard/chat-stream.php b/api/dashboard/chat-stream.php
index c4e6749..4894843 100644
--- a/api/dashboard/chat-stream.php
+++ b/api/dashboard/chat-stream.php
@@ -48,6 +48,26 @@ $history = array_values(array_filter($history, fn($m) => is_array($m)
 $category = trim((string)($input['category'] ?? '')) ?: null;
 $language = in_array($input['language'] ?? 'no', ['no', 'en'], true) ? $input['language'] : 'no';
 
+// Persona (legal-domain) scope: resolve the chosen persona's packages against the
+// DBN client (57, the package owner). The dashboard tenant is subscribed to the
+// DBN package set (provisioning + migration 177), so these package_ids survive the
+// subscription intersection in ClientRagPipeline and scope shared-law retrieval.
+$personaSlug = (isset($input['profile']) && is_string($input['profile']) && trim($input['profile']) !== '')
+    ? trim($input['profile']) : null;
+$personaPackageIds = [];
+if ($personaSlug !== null) {
+    try {
+        $dbnClient = dbnToolsFetchClient();
+        if ($dbnClient) {
+            $persona = dbnToolsResolvePersona((int)$dbnClient['id'], $personaSlug);
+            $personaPackageIds = array_values(array_filter(
+                array_map('intval', $persona['package_ids'] ?? []),
+                static fn(int $id): bool => $id > 0
+            ));
+        }
+    } catch (Throwable $e) { /* tolerated — fall back to default package scope */ }
+}
+
 // Folder scope: limit retrieval to a folder subtree, ACL-checked.
 $folderScopeRaw = $input['folder_id'] ?? null;
 $folderScope    = null;
@@ -84,6 +104,10 @@ try {
         'user_role'            => 'owner',
     ];
 
+    if ($personaPackageIds) {
+        $options['package_ids'] = $personaPackageIds;
+    }
+
     // Apply folder scoping via allowed_folder_ids (supported by ClientRagPipeline).
     if ($folderScope !== null) {
         if ($folderScope === 0) {
diff --git a/api/deep-research.php b/api/deep-research.php
index 001dfaa..0dfee86 100644
--- a/api/deep-research.php
+++ b/api/deep-research.php
@@ -70,6 +70,9 @@ try {
     $priorContext        = is_array($input['prior_context'] ?? null) ? $input['prior_context'] : null;
     $branchNotes        = mb_substr(trim((string)($input['branch_notes'] ?? '')), 0, 1000, 'UTF-8');
     $subQsOverride      = is_array($input['sub_questions_override'] ?? null) ? $input['sub_questions_override'] : [];
+    $personaSlug        = (isset($input['profile']) && is_string($input['profile']) && trim($input['profile']) !== '')
+        ? trim($input['profile'])
+        : null;
 
     if (mb_strlen($seedQuery, 'UTF-8') > 4000) {
         throw new DbnToolsHttpException('Query is too long.', 422, 'query_too_long');
@@ -139,7 +142,8 @@ try {
         $advocateRole,
         $priorContext,
         $branchNotes,
-        $subQsOverride
+        $subQsOverride,
+        $personaSlug
     );
 
     $result['ok'] = true;
diff --git a/api/korrespond.php b/api/korrespond.php
index 4a8069b..fd9bf0f 100644
--- a/api/korrespond.php
+++ b/api/korrespond.php
@@ -174,8 +174,12 @@ try {
     $ftRemaining = dbnToolsFreeTierDeduct($ftUid, 'korrespond');
     $creditDeducted = true;
 
+    $personaSlug = (isset($input['profile']) && is_string($input['profile']) && trim($input['profile']) !== '')
+        ? trim($input['profile'])
+        : null;
+
     // ── Pass 2: retrieve law → draft → self-check → translate ──────────────────
-    $result = $agent->generate($intake, $classify, $emit, $engine);
+    $result = $agent->generate($intake, $classify, $emit, $engine, $personaSlug);
     $result['ok']         = true;
     $result['latency_ms'] = (int)round((microtime(true) - $startTime) * 1000);
     if ($ftRemaining >= 0) {
diff --git a/assets/css/tools.css b/assets/css/tools.css
index b6271fb..ddfee02 100644
--- a/assets/css/tools.css
+++ b/assets/css/tools.css
@@ -3726,6 +3726,18 @@ a.passage-card__title:hover { color: var(--ink); }
 }
 .drill-sort-select:focus { border-color: var(--teal); }
 
+.corpus-persona {
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+}
+.corpus-persona__label {
+  font-size: 0.72rem;
+  text-transform: uppercase;
+  letter-spacing: 0.04em;
+  color: var(--muted);
+}
+
 .drill-loading,
 .drill-empty,
 .drill-error {
diff --git a/assets/js/deep-research.js b/assets/js/deep-research.js
index dce5e4c..eb5a97b 100644
--- a/assets/js/deep-research.js
+++ b/assets/js/deep-research.js
@@ -7,6 +7,7 @@
   let uploadFiles = [];
   let lastResult = null;
   let branchContext = null;
+  let persona = '';
 
   const SLICE_DEFS = [
     { id: 'family_core',      label: 'Family Law Core' },
@@ -42,6 +43,8 @@
       slices: Array.from(document.querySelectorAll('.dr-slice')),
       langButtons: Array.from(document.querySelectorAll('#drLangSwitcher .lang-btn')),
       engineRadios: Array.from(document.querySelectorAll('input[name="drEngine"]')),
+      personaControl: document.getElementById('drPersonaControl'),
+      personaSelect: document.getElementById('drPersonaSelect'),
       subQ: document.getElementById('drSubQ'),
       subQVal: document.getElementById('drSubQValue'),
       chunkLimit: document.getElementById('drChunkLimit'),
@@ -79,6 +82,7 @@
     bindUpload();
     bindModal();
     bindBranch();
+    loadPersonas();
     els.form.addEventListener('submit', onSubmit);
     els.results.addEventListener('click', (e) => {
       const btn = e.target.closest('.dr-branch-btn');
@@ -325,6 +329,7 @@
       language: lang,
       controls: getControls(),
     };
+    if (persona) payload.profile = persona;
     const _drDocIds = (document.getElementById('docPickerIds')?.value || '').split(',').map(Number).filter(Boolean);
     if (_drDocIds.length) payload.doc_ids = _drDocIds;
     if (branchContext) {
@@ -644,6 +649,33 @@
     </div>`;
   }
 
+  async function loadPersonas() {
+    if (!els.personaSelect) return;
+    try {
+      const r = await fetch('api/personas.php', { credentials: 'same-origin', headers: { Accept: 'application/json' } });
+      const data = await r.json().catch(() => ({}));
+      if (!r.ok || data.ok !== true || !Array.isArray(data.personas) || !data.personas.length) return;
+      const fallback = data.default_persona || 'family';
+      els.personaSelect.innerHTML = '';
+      data.personas.forEach((p) => {
+        const opt = document.createElement('option');
+        opt.value = p.slug;
+        opt.textContent = p.name || p.slug;
+        els.personaSelect.appendChild(opt);
+      });
+      const saved = sessionStorage.getItem('dbnPersona');
+      const initial = (saved && data.personas.some((p) => p.slug === saved)) ? saved
+        : (data.personas.some((p) => p.slug === fallback) ? fallback : data.personas[0].slug);
+      persona = initial;
+      els.personaSelect.value = initial;
+      els.personaSelect.addEventListener('change', () => {
+        persona = els.personaSelect.value;
+        sessionStorage.setItem('dbnPersona', persona);
+      });
+      els.personaControl?.classList.remove('is-hidden');
+    } catch (_) { /* personas are optional UI sugar; ignore failures */ }
+  }
+
   function bindBranch() {
     if (!els.branchClear) return;
     els.branchClear.addEventListener('click', clearBranch);
diff --git a/assets/js/korrespond.js b/assets/js/korrespond.js
index e706aaf..0893455 100644
--- a/assets/js/korrespond.js
+++ b/assets/js/korrespond.js
@@ -12,6 +12,7 @@
   let lastClassify = null;
   let lastFinal = null;
   let pendingClarifications = {};
+  let persona = '';
 
   const LANG_LABELS = { en: 'English', no: 'Norsk', uk: 'Українська', pl: 'Polski' };
 
@@ -116,6 +117,8 @@
       clarifyList:    document.getElementById('korrClarifyList'),
       clarifyContinue:document.getElementById('korrClarifyContinue'),
       clarifyForce:   document.getElementById('korrClarifyForce'),
+      personaControl: document.getElementById('korrPersonaControl'),
+      personaSelect:  document.getElementById('korrPersonaSelect'),
     });
 
     if (!els.form) return;
@@ -124,6 +127,7 @@
     bindGoalChips();
     bindUpload();
     bindClarify();
+    loadPersonas();
     applyStaticI18n();
     els.form.addEventListener('submit', (e) => { e.preventDefault(); runRequest(false); });
   });
@@ -279,9 +283,37 @@
       engine:         (document.querySelector('[name="korrEngine"]:checked')?.value ?? 'azure_mini'),
     };
     if (korrDocIds.length) payload.doc_ids = korrDocIds;
+    if (persona) payload.profile = persona;
     return payload;
   }
 
+  async function loadPersonas() {
+    if (!els.personaSelect) return;
+    try {
+      const r = await fetch('api/personas.php', { credentials: 'same-origin', headers: { Accept: 'application/json' } });
+      const data = await r.json().catch(() => ({}));
+      if (!r.ok || data.ok !== true || !Array.isArray(data.personas) || !data.personas.length) return;
+      const fallback = data.default_persona || 'family';
+      els.personaSelect.innerHTML = '';
+      data.personas.forEach((p) => {
+        const opt = document.createElement('option');
+        opt.value = p.slug;
+        opt.textContent = p.name || p.slug;
+        els.personaSelect.appendChild(opt);
+      });
+      const saved = sessionStorage.getItem('dbnPersona');
+      const initial = (saved && data.personas.some((p) => p.slug === saved)) ? saved
+        : (data.personas.some((p) => p.slug === fallback) ? fallback : data.personas[0].slug);
+      persona = initial;
+      els.personaSelect.value = initial;
+      els.personaSelect.addEventListener('change', () => {
+        persona = els.personaSelect.value;
+        sessionStorage.setItem('dbnPersona', persona);
+      });
+      els.personaControl?.classList.remove('is-hidden');
+    } catch (_) { /* personas are optional UI sugar; ignore failures */ }
+  }
+
   async function runRequest(forceDraft) {
     const payload = buildPayload(forceDraft);
     if (!payload.recipient_body) {
diff --git a/corpus.php b/corpus.php
index 8bc8352..03090cd 100644
--- a/corpus.php
+++ b/corpus.php
@@ -77,6 +77,10 @@ require_once __DIR__ . '/includes/layout.php';
             <button class="mode-pill" data-lang="uk" type="button">UK</button>
             <button class="mode-pill" data-lang="pl" type="button">PL</button>
         </div>
+        <label class="corpus-persona is-hidden" id="corpusPersonaControl" for="corpusPersonaSelect" title="Legal domain — scopes Hybrid search">
+            <span class="corpus-persona__label">Domain</span>
+            <select id="corpusPersonaSelect" class="drill-sort-select" aria-label="Legal domain persona"></select>
+        </label>
     </div>
     <div class="search-cats" role="group" aria-label="Category filter" id="searchCatPills">
         <button class="mode-pill is-active" data-cat="" type="button">All</button>
@@ -743,6 +747,7 @@ require_once __DIR__ . '/includes/layout.php';
     let searchMode = 'hybrid';
     let searchLang = 'en';
     let searchCat  = '';
+    let searchPersona = '';
 
     document.querySelectorAll('.search-modes .mode-pill').forEach(btn => {
         btn.addEventListener('click', () => {
@@ -775,6 +780,40 @@ require_once __DIR__ . '/includes/layout.php';
     const searchBtn     = document.getElementById('corpusSearchBtn');
     const searchResults = document.getElementById('corpusSearchResults');
 
+    // ── Persona (legal domain) selector — scopes Hybrid search ──────────────────
+    const personaControl = document.getElementById('corpusPersonaControl');
+    const personaSelect  = document.getElementById('corpusPersonaSelect');
+
+    async function loadPersonas() {
+        if (!personaSelect) return;
+        try {
+            const r = await fetch('/api/personas.php', { credentials: 'same-origin', headers: { Accept: 'application/json' } });
+            const data = await r.json().catch(() => ({}));
+            if (!r.ok || data.ok !== true || !Array.isArray(data.personas) || !data.personas.length) return;
+            const fallback = data.default_persona || 'family';
+            personaSelect.innerHTML = '';
+            for (const p of data.personas) {
+                const opt = document.createElement('option');
+                opt.value = p.slug;
+                opt.textContent = p.name || p.slug;
+                personaSelect.appendChild(opt);
+            }
+            const hashPersona = new URLSearchParams(location.hash.slice(1)).get('persona');
+            const saved = hashPersona || sessionStorage.getItem('dbnPersona');
+            const initial = (saved && data.personas.some(p => p.slug === saved)) ? saved
+                : (data.personas.some(p => p.slug === fallback) ? fallback : data.personas[0].slug);
+            searchPersona = initial;
+            personaSelect.value = initial;
+            personaSelect.addEventListener('change', () => {
+                searchPersona = personaSelect.value;
+                sessionStorage.setItem('dbnPersona', searchPersona);
+                pushHash();
+            });
+            personaControl?.classList.remove('is-hidden');
+        } catch (_) { /* personas are optional UI sugar; ignore failures */ }
+    }
+    loadPersonas();
+
     function runSearch() {
         const q = searchInput.value.trim();
         if (q.length < 3) {
@@ -792,7 +831,7 @@ require_once __DIR__ . '/includes/layout.php';
             method: 'POST',
             credentials: 'same-origin',
             headers: { 'Content-Type': 'application/json' },
-            body: JSON.stringify({ query: q, mode: searchMode, language: searchLang, limit: 8, category: searchCat || null }),
+            body: JSON.stringify({ query: q, mode: searchMode, language: searchLang, limit: 8, category: searchCat || null, profile: searchPersona || null }),
         })
         .then(r => r.json())
         .then(data => {
@@ -872,6 +911,7 @@ require_once __DIR__ . '/includes/layout.php';
         if (searchMode !== 'hybrid')  p.set('mode', searchMode);
         if (searchLang !== 'en')      p.set('lang', searchLang);
         if (searchCat)                p.set('cat',  searchCat);
+        if (searchPersona && searchPersona !== 'family') p.set('persona', searchPersona);
         if (drillPanel && !drillPanel.hidden) {
             if (drillState.category)   p.set('drill',    drillState.category);
             if (drillState.sourceName) p.set('drillsrc', drillState.sourceName);
@@ -901,6 +941,10 @@ require_once __DIR__ . '/includes/layout.php';
             searchCat = p.get('cat');
             activatePill('#searchCatPills .mode-pill', 'cat', searchCat);
         }
+        if (p.has('persona')) {
+            searchPersona = p.get('persona');
+            if (personaSelect) personaSelect.value = searchPersona;
+        }
         if (p.has('drill'))    openDrillByCategory(p.get('drill'));
         if (p.has('drillsrc')) openDrillBySource(p.get('drillsrc'));
         if (p.has('q') && searchInput) {
diff --git a/dashboard/chat.php b/dashboard/chat.php
index d7fcecd..a2e7a56 100644
--- a/dashboard/chat.php
+++ b/dashboard/chat.php
@@ -12,6 +12,12 @@ require_once __DIR__ . '/../includes/layout_dashboard.php';
 
 <section class="dash-card" style="display:flex; flex-direction:column; min-height:60vh;">
     <div class="dms-filters" style="margin-bottom:8px;">
+        <label style="font-size:13px;display:inline-flex;gap:6px;align-items:center;">
+            ⚖️ <span>Domain:</span>
+            <select id="chatPersona" aria-label="Legal domain persona">
+                <option value="">Default (family law)</option>
+            </select>
+        </label>
         <label style="font-size:13px;display:inline-flex;gap:6px;align-items:center;">
             📁 <span>Scope:</span>
             <select id="chatFolderScope">
@@ -86,6 +92,27 @@ require_once __DIR__ . '/../includes/layout_dashboard.php';
 
     function safe(s) { return String(s ?? '').replace(/[&<>"]/g, c => ({ '&':'&amp;','<':'&lt;','>':'&gt;','"':'&quot;' }[c])); }
 
+    // Populate the legal-domain persona picker (personas.php lives at the site root).
+    (async function loadPersonas() {
+        const sel = document.getElementById('chatPersona');
+        if (!sel) return;
+        try {
+            const resp = await fetch('/api/personas.php', { credentials: 'same-origin' });
+            if (!resp.ok) return;
+            const data = await resp.json();
+            const personas = (data && data.personas) || [];
+            if (!personas.length) return;
+            sel.innerHTML = '';
+            personas.forEach(p => {
+                const opt = document.createElement('option');
+                opt.value = p.slug;
+                opt.textContent = p.name;
+                sel.appendChild(opt);
+            });
+            if (data.default_persona) sel.value = data.default_persona;
+        } catch (_) { /* keep the default option */ }
+    })();
+
     function clearEmpty() {
         const empty = $log.querySelector('.chat-empty');
         if (empty) empty.remove();
@@ -132,7 +159,9 @@ require_once __DIR__ . '/../includes/layout_dashboard.php';
             const folderScope = document.getElementById('chatFolderScope');
             const includeSub  = document.getElementById('chatIncludeSub');
             const includeRel  = document.getElementById('chatIncludeRelated');
+            const persona = document.getElementById('chatPersona');
             const body = { question, history: history.slice(0, -1) };
+            if (persona && persona.value) body.profile = persona.value;
             if (folderScope && folderScope.value && folderScope.value !== 'all') {
                 body.folder_id = folderScope.value;
                 body.include_subfolders = includeSub && includeSub.checked;
diff --git a/deep-research.php b/deep-research.php
index 9a5421e..3de94ba 100644
--- a/deep-research.php
+++ b/deep-research.php
@@ -25,6 +25,12 @@ require_once __DIR__ . '/includes/layout.php';
                     </div>
                     <p class="upload-hint">Azure mini is the default and finishes fastest. Azure full is the most thorough. Norwegian specialist v3 is a Qwen2.5 fine-tune optimised for barnevernsloven, ECHR, and forvaltningsloven — best for cases involving § 4-25, Strand Lobben, or procedural challenges.</p>
 
+                    <div class="control-row corpus-persona is-hidden" id="drPersonaControl">
+                        <span class="control-label">Domain</span>
+                        <select id="drPersonaSelect" class="drill-sort-select" aria-label="Legal domain persona"></select>
+                        <small class="control-hint">Scopes the corpus to a legal domain persona.</small>
+                    </div>
+
                     <div class="dr-slice-section">
                         <p class="control-label">Corpus slices</p>
                         <p class="upload-hint">Three core legal slices are on by default. Enable Hague Convention, Norwegian Courts, Bufdir guidance, or DBN&nbsp;Resources for more targeted research.</p>
diff --git a/includes/CorpusProvision.php b/includes/CorpusProvision.php
index 41baf19..5a39f64 100644
--- a/includes/CorpusProvision.php
+++ b/includes/CorpusProvision.php
@@ -208,20 +208,40 @@ final class CorpusProvision
         return (int)$db->lastInsertId();
     }
 
+    /**
+     * Slugs every DBN dashboard tenant is subscribed to, so persona-scoped
+     * retrieval (which intersects requested package_ids with the tenant's
+     * subscriptions) resolves for any domain persona. family-legal stays the
+     * default; the dbn-* packages back the other personas.
+     */
+    public const DBN_PACKAGE_SLUGS = [
+        'family-legal',
+        'dbn-child-welfare',
+        'dbn-immigration',
+        'dbn-labour',
+        'dbn-consumer-tenancy',
+        'dbn-general',
+    ];
+
     private static function subscribeIncludedPackages(PDO $db, int $clientId): void
     {
-        $packageSlug = dbnToolsRequiredPackageSlug();
-        $stmt = $db->prepare('SELECT id FROM corpus_packages WHERE slug = ? AND is_active = 1 LIMIT 1');
-        $stmt->execute([$packageSlug]);
-        $packageId = (int)($stmt->fetchColumn() ?: 0);
-        if ($packageId === 0) {
+        $placeholders = implode(',', array_fill(0, count(self::DBN_PACKAGE_SLUGS), '?'));
+        $stmt = $db->prepare(
+            "SELECT id FROM corpus_packages WHERE slug IN ($placeholders) AND is_active = 1"
+        );
+        $stmt->execute(self::DBN_PACKAGE_SLUGS);
+        $packageIds = array_map('intval', $stmt->fetchAll(PDO::FETCH_COLUMN));
+        if (!$packageIds) {
             return;
         }
-        $db->prepare(
+        $insert = $db->prepare(
             "INSERT IGNORE INTO client_corpus_subscriptions
                 (client_id, package_id, is_active, source, subscribed_at)
              VALUES (?, ?, 1, 'dbn_dashboard', NOW())"
-        )->execute([$clientId, $packageId]);
+        );
+        foreach ($packageIds as $packageId) {
+            $insert->execute([$clientId, $packageId]);
+        }
     }
 
     private static function uniqueSlug(PDO $db, string $base): string
diff --git a/includes/DeepResearchAgent.php b/includes/DeepResearchAgent.php
index 45a2236..300a4d0 100644
--- a/includes/DeepResearchAgent.php
+++ b/includes/DeepResearchAgent.php
@@ -36,7 +36,8 @@ final class DbnDeepResearchAgent
         string   $advocateRole = '',
         ?array   $priorContext = null,
         string   $branchNotes = '',
-        array    $subQuestionsOverride = []
+        array    $subQuestionsOverride = [],
+        ?string  $persona = null
     ): array {
         $seedQuery   = trim($seedQuery);
         $pastedText  = trim($pastedText);
@@ -50,7 +51,15 @@ final class DbnDeepResearchAgent
         }
 
         $client  = dbnToolsRequireClient();
-        $package = $this->requireFamilyPackage((int)$client['id']);
+        $personaResolved = dbnToolsResolvePersona((int)$client['id'], $persona);
+        $packageIds = array_values(array_filter(
+            array_map('intval', $personaResolved['package_ids'] ?? []),
+            static fn(int $id): bool => $id > 0
+        ));
+        if (!$packageIds) {
+            // Persona resolved without a package → fall back to the legacy family package.
+            $packageIds = [(int)$this->requireFamilyPackage((int)$client['id'])['id']];
+        }
 
         dbnToolsBootCaveau();
         $aiPortalRoot = dbnToolsAiPortalRoot();
@@ -230,7 +239,7 @@ final class DbnDeepResearchAgent
                     [
                         'search_private'         => false,
                         'search_shared'          => true,
-                        'package_ids'            => [(int)$package['id']],
+                        'package_ids'            => $packageIds,
                         'shared_doc_ids'         => $sharedDocIds,
                         'chunk_limit'            => $controls['chunk_limit'],
                         'search_method'          => 'hybrid',
diff --git a/includes/KorrespondAgent.php b/includes/KorrespondAgent.php
index 34a5efd..8c32ee9 100644
--- a/includes/KorrespondAgent.php
+++ b/includes/KorrespondAgent.php
@@ -243,7 +243,7 @@ PROMPT;
      *
      * @return array  Final result payload (matches NDJSON 'final' event shape).
      */
-    public function generate(array $intake, array $classify, ?callable $emit = null, string $engine = 'azure_mini'): array
+    public function generate(array $intake, array $classify, ?callable $emit = null, string $engine = 'azure_mini', ?string $persona = null): array
     {
         $draftDeployment = ($this->azure instanceof DbnBedrockGateway)
             ? (($engine === 'claude_sonnet' || $engine === 'azure_full')
@@ -259,7 +259,7 @@ PROMPT;
 
         // ── Retrieve law ────────────────────────────────────────────────────────
         if ($emit) { $emit('progress', ['detail' => self::L('fetching_law', $userLang)]); }
-        $retrieval = $this->retrieveLaw($body, $classify['applicable_acts'] ?? []);
+        $retrieval = $this->retrieveLaw($body, $classify['applicable_acts'] ?? [], $persona);
         if ($emit) {
             $emit('retrieval', [
                 'sources_count'   => count($retrieval['sources']),
@@ -420,12 +420,20 @@ PROMPT;
      *
      * @return array{sources:array, applied_slices:string[]}
      */
-    private function retrieveLaw(string $body, array $applicableActs): array
+    private function retrieveLaw(string $body, array $applicableActs, ?string $persona = null): array
     {
         $client  = dbnToolsRequireClient();
-        $package = dbnToolsFetchPackage(dbnToolsRequiredPackageSlug());
-        if (!$package) {
-            return ['sources' => [], 'applied_slices' => []];
+        $personaResolved = dbnToolsResolvePersona((int)$client['id'], $persona);
+        $packageIds = array_values(array_filter(
+            array_map('intval', $personaResolved['package_ids'] ?? []),
+            static fn(int $id): bool => $id > 0
+        ));
+        if (!$packageIds) {
+            $package = dbnToolsFetchPackage(dbnToolsRequiredPackageSlug());
+            if (!$package) {
+                return ['sources' => [], 'applied_slices' => []];
+            }
+            $packageIds = [(int)$package['id']];
         }
 
         dbnToolsBootCaveau();
@@ -476,7 +484,7 @@ PROMPT;
                     $chunks = $rag->searchAll($q, 5, null, [
                         'search_private'          => false,
                         'search_shared'           => true,
-                        'package_ids'             => [(int)$package['id']],
+                        'package_ids'             => $packageIds,
                         'shared_doc_ids'          => $sharedDocIds,
                         'chunk_limit'             => 5,
                         'search_method'           => 'hybrid',
diff --git a/korrespond.php b/korrespond.php
index 66907cf..b2fbe3a 100644
--- a/korrespond.php
+++ b/korrespond.php
@@ -78,6 +78,13 @@ require_once __DIR__ . '/includes/layout.php';
                     </div>
                     <p class="upload-hint">Quick uses Claude Haiku 4.5 for drafting — fast and solid for standard correspondence. Thorough uses Claude Sonnet 4.6 — better at multi-statute cases, complex appeal grounds, and ECHR framing.</p>
 
+                    <!-- Domain persona -->
+                    <div class="control-row corpus-persona is-hidden" id="korrPersonaControl">
+                        <span class="control-label">Domain</span>
+                        <select id="korrPersonaSelect" class="adv-role-select" aria-label="Legal domain persona"></select>
+                        <small class="control-hint">Scopes the hard-RAG law retrieval to a legal domain.</small>
+                    </div>
+
                     <!-- Case context fields -->
                     <div class="dr-control-grid">
                         <div class="dr-control-card">