diff --git a/src/routes/events/[event_id]/(leads)/leads/exhibit/[exhibit_id]/ae_comp__lead_manual_search.svelte b/src/routes/events/[event_id]/(leads)/leads/exhibit/[exhibit_id]/ae_comp__lead_manual_search.svelte
index 66239994..ddf4452d 100644
--- a/src/routes/events/[event_id]/(leads)/leads/exhibit/[exhibit_id]/ae_comp__lead_manual_search.svelte
+++ b/src/routes/events/[event_id]/(leads)/leads/exhibit/[exhibit_id]/ae_comp__lead_manual_search.svelte
@@ -4,10 +4,12 @@
      * Manual Attendee Search for adding leads.
      */
     import { page } from '$app/state';
+    import { liveQuery } from 'dexie';
+    import { db_events } from '$lib/ae_events/db_events';
     import { ae_api } from '$lib/stores/ae_stores';
     import { events_loc } from '$lib/stores/ae_events_stores';
     import { events_func } from '$lib/ae_events_functions';
-    import { Search, UserPlus, CheckCircle, LoaderCircle } from 'lucide-svelte';
+    import { Search, UserPlus, CheckCircle, LoaderCircle, Eye } from 'lucide-svelte';
     import type { ae_EventBadge } from '$lib/types/ae_types';
     import { ae_util } from '$lib/ae_utils/ae_utils';
 
@@ -18,6 +20,24 @@
 
     let { exhibit_id, on_lead_added }: Props = $props();
 
+    // Track existing leads to prevent duplicates in UI
+    let existing_leads_map = $derived(
+        liveQuery(async () => {
+            const leads = await db_events.exhibit_tracking
+                .where('event_exhibit_id')
+                .equals(exhibit_id)
+                .toArray();
+            
+            // Map badge_id -> tracking_id
+            const map = new Map();
+            leads.forEach(l => {
+                const b_id = l.event_badge_id_random || l.event_badge_id?.toString();
+                if (b_id) map.set(b_id, l.event_exhibit_tracking_id_random || l.event_exhibit_tracking_id?.toString());
+            });
+            return map;
+        })
+    );
+
     let search_query = $state('');
     let results: ae_EventBadge[] = $state([]);
     let searching = $state(false);
@@ -105,19 +125,30 @@
                         <div class="font-bold">{badge.full_name}</div>
                         <div class="text-xs opacity-70">{badge.affiliations || badge.email || ''}</div>
                     </div>
-                    <button 
-                        type="button" 
-                        class="btn btn-sm preset-filled-success"
-                        disabled={adding_id === badge.event_badge_id_random}
-                        onclick={() => add_as_lead(badge)}
-                    >
-                        {#if adding_id === badge.event_badge_id_random}
-                            <LoaderCircle class="animate-spin" size="1em" />
-                        {:else}
-                            <UserPlus size="1em" class="mr-1" />
-                        {/if}
-                        Add
-                    </button>
+
+                    {#if $existing_leads_map?.has(badge.event_badge_id_random)}
+                        <a 
+                            href={`/events/${page.params.event_id}/leads/exhibit/${exhibit_id}/lead/${$existing_leads_map.get(badge.event_badge_id_random)}`}
+                            class="btn btn-sm variant-filled-secondary"
+                        >
+                            <Eye size="1em" class="mr-1" />
+                            View
+                        </a>
+                    {:else}
+                        <button 
+                            type="button" 
+                            class="btn btn-sm preset-filled-success"
+                            disabled={adding_id === badge.event_badge_id_random}
+                            onclick={() => add_as_lead(badge)}
+                        >
+                            {#if adding_id === badge.event_badge_id_random}
+                                <LoaderCircle class="animate-spin" size="1em" />
+                            {:else}
+                                <UserPlus size="1em" class="mr-1" />
+                            {/if}
+                            Add
+                        </button>
+                    {/if}
                 </div>
             {/each}
         </div>
diff --git a/src/routes/events/[event_id]/(leads)/leads/exhibit/[exhibit_id]/ae_comp__lead_qr_scanner.svelte b/src/routes/events/[event_id]/(leads)/leads/exhibit/[exhibit_id]/ae_comp__lead_qr_scanner.svelte
index e0f72040..9ae57d2d 100644
--- a/src/routes/events/[event_id]/(leads)/leads/exhibit/[exhibit_id]/ae_comp__lead_qr_scanner.svelte
+++ b/src/routes/events/[event_id]/(leads)/leads/exhibit/[exhibit_id]/ae_comp__lead_qr_scanner.svelte
@@ -4,12 +4,14 @@
      * Badge QR Scanner for adding leads.
      */
     import { page } from '$app/state';
+    import { liveQuery } from 'dexie';
+    import { db_events } from '$lib/ae_events/db_events';
     import { ae_api } from '$lib/stores/ae_stores';
     import { events_loc } from '$lib/stores/ae_events_stores';
     import { events_func } from '$lib/ae_events_functions';
     import Element_qr_scanner_v2 from '$lib/element_qr_scanner_v2.svelte';
     import { ae_util } from '$lib/ae_utils/ae_utils';
-    import { LoaderCircle, UserPlus, CheckCircle, AlertCircle } from 'lucide-svelte';
+    import { LoaderCircle, UserPlus, CheckCircle, AlertCircle, Eye } from 'lucide-svelte';
     import type { ae_EventBadge } from '$lib/types/ae_types';
 
     interface Props {
@@ -19,9 +21,27 @@
 
     let { exhibit_id, on_lead_added }: Props = $props();
 
+    // Track existing leads to prevent duplicates
+    let existing_leads_map = $derived(
+        liveQuery(async () => {
+            const leads = await db_events.exhibit_tracking
+                .where('event_exhibit_id')
+                .equals(exhibit_id)
+                .toArray();
+            
+            const map = new Map();
+            leads.forEach(l => {
+                const b_id = l.event_badge_id_random || l.event_badge_id?.toString();
+                if (b_id) map.set(b_id, l.event_exhibit_tracking_id_random || l.event_exhibit_tracking_id?.toString());
+            });
+            return map;
+        })
+    );
+
     let start_qr_scanner = $state(true);
-    let scanning_status = $state('idle'); // idle, scanning, found, adding, success, error
+    let scanning_status = $state('idle'); // idle, scanning, found, adding, success, error, already_added
     let found_badge: ae_EventBadge | null = $state(null);
+    let existing_tracking_id = $state('');
     let error_msg = $state('');
 
     async function handle_qr_scan_result(event: CustomEvent) {
@@ -29,9 +49,16 @@
         const obj = ae_util.process_data_string(qr_result);
 
         if (obj && obj.type === 'event_badge' && obj.id) {
-            scanning_status = 'found';
             start_qr_scanner = false;
             
+            // Check if already exists
+            if ($existing_leads_map?.has(obj.id)) {
+                scanning_status = 'already_added';
+                existing_tracking_id = $existing_leads_map.get(obj.id);
+            } else {
+                scanning_status = 'found';
+            }
+            
             // Load full badge info
             try {
                 found_badge = await events_func.load_ae_obj_id__event_badge({
@@ -97,6 +124,32 @@
         </div>
         <p class="text-center opacity-70 italic text-sm">Point camera at the badge QR code</p>
     
+    {:else if scanning_status === 'already_added'}
+        <div class="card p-6 w-full max-w-md space-y-4 variant-soft-secondary shadow-xl border-2 border-secondary-500 animate-in zoom-in">
+            <div class="text-center space-y-2">
+                <CheckCircle size="3em" class="mx-auto text-secondary-500" />
+                <h3 class="h3 font-bold">Already Captured</h3>
+                <p class="text-xl font-bold">{found_badge?.full_name || 'Attendee'}</p>
+                <p class="opacity-70 text-sm">This attendee is already in your leads list.</p>
+            </div>
+            
+            <a 
+                href={`/events/${page.params.event_id}/leads/exhibit/${exhibit_id}/lead/${existing_tracking_id}`}
+                class="btn btn-xl w-full variant-filled-secondary font-bold py-6"
+            >
+                <Eye size="1.5em" class="mr-2" />
+                View Lead Details
+            </a>
+            
+            <button 
+                type="button" 
+                class="btn btn-sm w-full opacity-50"
+                onclick={reset_scanner}
+            >
+                Scan Next
+            </button>
+        </div>
+
     {:else if scanning_status === 'found' || scanning_status === 'adding'}
         <div class="card p-6 w-full max-w-md space-y-4 variant-soft-primary shadow-xl border-2 border-primary-500">
             <div class="text-center">