diff --git a/frontend/src/App.tsx b/frontend/src/App.tsx
index 447a599..443bea2 100644
--- a/frontend/src/App.tsx
+++ b/frontend/src/App.tsx
@@ -66,10 +66,11 @@ const App: React.FC = () => {
     }, []);
 
     const handlePgroupChange = (newPgroup: string) => {
-        setActivePgroup(newPgroup);
+        setActivePgroup(newPgroup); // Updates active pgroup state in App
         console.log(`pgroup changed to: ${newPgroup}`);
     };
 
+
     return (
         <Router>
             <ResponsiveAppBar
@@ -85,9 +86,33 @@ const App: React.FC = () => {
                 <Route path="/" element={<ProtectedRoute element={<HomePage />} />} />
                 <Route path="/shipments" element={<ProtectedRoute element={<ShipmentView pgroups={pgroups} activePgroup={activePgroup} />} />} />
                 <Route path="/planning" element={<ProtectedRoute element={<PlanningView />} />} />
-                <Route path="/results/:beamtimeId" element={<ProtectedRoute element={<ResultsView pgroups={pgroups} activePgroup={activePgroup} />} />} />
-                <Route path="/beamtime-overview" element={<ProtectedRoute element={<BeamtimeOverview activePgroup={activePgroup} />} />} />
-                <Route path="/results" element={<ProtectedRoute element={<BeamtimeOverview activePgroup={activePgroup} />} />}/>
+                <Route
+                    path="/results/:beamtimeId"
+                    element={
+                        <ProtectedRoute
+                            element={
+                                <ResultsView
+                                    onPgroupChange={handlePgroupChange}
+                                    currentPgroup={activePgroup}
+                                />
+                            }
+                        />
+                    }
+                />
+                <Route
+                    path="/beamtime-overview"
+                    element={
+                        <ProtectedRoute
+                            element={
+                                <BeamtimeOverview
+                                    activePgroup={activePgroup}
+                                    onPgroupChange={handlePgroupChange} // Pass this prop correctly
+                                />
+                            }
+                        />
+                    }
+                />
+                <Route path="/results" element={<ProtectedRoute element={<BeamtimeOverview activePgroup={activePgroup} onPgroupChange={handlePgroupChange}  />} />}/>
                 {/* Optionally, add a 404 fallback route */}
                 <Route path="*" element={<div>Page not found</div>} />
 
diff --git a/frontend/src/components/BeamtimeOverview.tsx b/frontend/src/components/BeamtimeOverview.tsx
index 9c8d01c..964e020 100644
--- a/frontend/src/components/BeamtimeOverview.tsx
+++ b/frontend/src/components/BeamtimeOverview.tsx
@@ -16,9 +16,10 @@ interface BeamtimeRecord {
 
 interface BeamtimeOverviewProps {
     activePgroup: string;
+    onPgroupChange: (pgroup: string) => void; // Add callback to update the selected pgroup
 }
 
-const BeamtimeOverview: React.FC<BeamtimeOverviewProps> = ({ activePgroup }) => {
+const BeamtimeOverview: React.FC<BeamtimeOverviewProps> = ({ activePgroup, onPgroupChange }) => {
     const [rows, setRows] = useState<BeamtimeRecord[]>([]);
     const [isLoading, setIsLoading] = useState(false);
 
@@ -101,7 +102,7 @@ const BeamtimeOverview: React.FC<BeamtimeOverviewProps> = ({ activePgroup }) =>
             flex: 1,
             renderCell: (params) => (
                 <button
-                    onClick={() => handleViewResults(params.row.id)}
+                    onClick={() => handleViewResults(params.row.id, params.row.pgroups)}
                     style={{
                         padding: '6px 12px',
                         backgroundColor: '#1976d2',
@@ -118,8 +119,15 @@ const BeamtimeOverview: React.FC<BeamtimeOverviewProps> = ({ activePgroup }) =>
     ];
 
     // Navigate to the ResultsView page for the selected beamtime
-    const handleViewResults = (beamtimeId: number) => {
-        navigate(`/results/${beamtimeId}?pgroup=${activePgroup}`);
+    const handleViewResults = (beamtimeId: number, pgroups: string) => {
+        const pgroupArray = pgroups.split(',').map((pgroup) => pgroup.trim());
+        const firstPgroup = pgroupArray[0] || ''; // Choose the first pgroup (or fallback to empty string)
+
+        // Ensure onPgroupChange is invoked correctly
+        onPgroupChange(firstPgroup);
+
+        // Navigate directly to the Results page with the correct pgroup in the query
+        navigate(`/results/${beamtimeId}?pgroup=${firstPgroup}`);
     };
 
     return (
diff --git a/frontend/src/components/ProtectedRoute.tsx b/frontend/src/components/ProtectedRoute.tsx
index 1de22da..e2d6b8a 100644
--- a/frontend/src/components/ProtectedRoute.tsx
+++ b/frontend/src/components/ProtectedRoute.tsx
@@ -3,16 +3,19 @@ import { Navigate } from 'react-router-dom';
 
 interface ProtectedRouteProps {
     element: JSX.Element;
+    [key: string]: any; // Allow additional props
 }
 
-const ProtectedRoute: React.FC<ProtectedRouteProps> = ({ element }) => {
+const ProtectedRoute: React.FC<ProtectedRouteProps> = ({ element, ...rest }) => {
     const isAuthenticated = () => {
-         const token = localStorage.getItem('token');
-         console.log("Is Authenticated: ", token !== null);
-         return token !== null;
-     };
+        const token = localStorage.getItem('token');
+        console.log("Is Authenticated: ", token !== null);
+        return token !== null;
+    };
 
-    return isAuthenticated() ? element : <Navigate to="/login" />;
+    return isAuthenticated()
+        ? React.cloneElement(element, { ...rest }) // Pass all additional props
+        : <Navigate to="/login" />;
 };
 
 export default ProtectedRoute;
\ No newline at end of file
diff --git a/frontend/src/components/ResponsiveAppBar.tsx b/frontend/src/components/ResponsiveAppBar.tsx
index e2d5367..2a1354b 100644
--- a/frontend/src/components/ResponsiveAppBar.tsx
+++ b/frontend/src/components/ResponsiveAppBar.tsx
@@ -1,4 +1,4 @@
-import React, { useState } from 'react';
+import React, { useState, useEffect } from 'react';
 import { useNavigate, useLocation } from 'react-router-dom';
 import AppBar from '@mui/material/AppBar';
 import Box from '@mui/material/Box';
@@ -38,6 +38,12 @@ const ResponsiveAppBar: React.FC<ResponsiveAppBarProps> = ({
     const [anchorElNav, setAnchorElNav] = useState<null | HTMLElement>(null);
     const [anchorElUser, setAnchorElUser] = useState<null | HTMLElement>(null);
     const [selectedPgroup, setSelectedPgroup] = useState(currentPgroup);
+
+    useEffect(() => {
+        setSelectedPgroup(currentPgroup); // Sync local state with the global activePgroup
+    }, [currentPgroup]);
+
+
     console.log('Active Pgroup:', activePgroup);
     const handlePgroupChange = (event: React.ChangeEvent<{ value: unknown }>) => {
         const newPgroup = event.target.value as string;
diff --git a/frontend/src/pages/ResultsView.tsx b/frontend/src/pages/ResultsView.tsx
index b94ef64..b8c8260 100644
--- a/frontend/src/pages/ResultsView.tsx
+++ b/frontend/src/pages/ResultsView.tsx
@@ -1,16 +1,39 @@
-import React from 'react';
-import { useParams, useSearchParams} from 'react-router-dom';
+import React, { useEffect } from 'react';
+import { useParams, useSearchParams, useNavigate } from 'react-router-dom';
 import SampleTracker from '../components/SampleTracker';
 import ResultGrid from '../components/ResultGrid';
 
+interface ResultsViewProps {
+    onPgroupChange?: (pgroup: string) => void; // Callback to notify about pgroup changes
+    currentPgroup: string; // Currently selected pgroup
+}
 
-interface ResultsViewProps {}
-
-const ResultsView: React.FC<ResultsViewProps> = () => {
-    // Get the selected beamtime ID from the URL
+const ResultsView: React.FC<ResultsViewProps> = ({ onPgroupChange, currentPgroup }) => {
     const { beamtimeId } = useParams();
     const [searchParams] = useSearchParams();
-    const activePgroup = searchParams.get("pgroup") ?? '';
+    const navigate = useNavigate();
+
+    // Get the active pgroup for the experiment from the query params.
+    const activePgroup = searchParams.get("pgroup") ?? ''; // Default to an empty string if missing
+
+    // Redirect if the selected pgroup does not match the beamtime's pgroup
+    useEffect(() => {
+        if (!currentPgroup || currentPgroup !== activePgroup) {
+            console.warn(
+                `Redirecting to BeamtimeOverview because selected pgroup (${currentPgroup || "undefined"}) does not match beamtime's pgroup (${activePgroup})`
+            );
+            navigate('/beamtime-overview'); // Redirect to BeamtimeOverview
+        }
+    }, [currentPgroup, activePgroup, navigate]);
+
+    // Notify parent about the selected pgroup (if needed)
+    useEffect(() => {
+        // Synchronize the pgroup when the component loads
+        if (onPgroupChange && activePgroup !== currentPgroup) {
+            onPgroupChange(activePgroup); // Update the selected pgroup
+        }
+    }, [onPgroupChange, activePgroup, currentPgroup]);
+
 
     return (
         <div>
@@ -24,4 +47,4 @@ const ResultsView: React.FC<ResultsViewProps> = () => {
     );
 };
 
-export default ResultsView;
+export default ResultsView;
\ No newline at end of file