diff --git a/backend/routes/email.js b/backend/routes/email.js
index 672ba04..775aec4 100644
--- a/backend/routes/email.js
+++ b/backend/routes/email.js
@@ -1,10 +1,11 @@
 const express = require('express');
 const { DEFAULT_RECIPIENTS, sendEmergencyEmail } = require('../services/emailService');
 const logger = require('../utils/logger');
+const { verifyToken } = require('../middleware/auth');
 
 const router = express.Router();
 
-router.post('/', async (req, res) => {
+router.post('/', verifyToken, async (req, res) => {
   try {
     const report = req?.body?.report;
     const recipients = Array.isArray(req?.body?.recipients) ? req.body.recipients : DEFAULT_RECIPIENTS;
diff --git a/backend/routes/incidents.js b/backend/routes/incidents.js
index e107e09..b877063 100644
--- a/backend/routes/incidents.js
+++ b/backend/routes/incidents.js
@@ -34,12 +34,23 @@ const writeDb = (db) => {
   fs.renameSync(tmpPath, DB_PATH);
 };
 
+const isValidIncidentId = (id) =>
+  typeof id === 'string' && id.length > 0 && id.length <= 64;
+
 const findIncident = (db, incidentId) =>
   db.incidents.find((i) => i.incidentId === incidentId) || null;
 
 // All incident routes require auth
 router.use(verifyToken);
 
+// Validate incidentId parameter format
+router.param('incidentId', (req, res, next, id) => {
+  if (!isValidIncidentId(id)) {
+    return res.status(400).json({ success: false, error: 'Invalid incidentId format.' });
+  }
+  next();
+});
+
 /**
  * POST /api/incidents/mock
  * Creates a mocked incident report record for the authenticated user.
diff --git a/backend/server.js b/backend/server.js
index ad7ed78..eba3bdd 100644
--- a/backend/server.js
+++ b/backend/server.js
@@ -16,7 +16,7 @@ const app = express();
 const PORT = process.env.PORT || 5000;
 
 app.use(cors());
-app.use(express.json({ limit: '8mb' }));
+app.use(express.json({ limit: '1mb' }));
 
 app.use((req, res, next) => {
   const startedAt = Date.now();
@@ -49,7 +49,6 @@ app.use('/api/history', historyRoutes);
 app.use('/api/vehicle-observations', vehicleObservationRoutes);
 app.use('/api/incidents', incidentRoutes);
 app.use('/api/audio', audioRoutes);
-app.use(userVideoRoutes);
 app.use('/api', userVideoRoutes);
 
 // Supports both: